Identification_Information:
  Citation:
    Citation_Information:
      Originator:
        U.S. Department of Agriculture, Natural Resources
        Conservation Service
      Publication_Date: 20200604
      Title:
        Soil Survey Geographic (SSURGO) database for
        Powell County Area, Montana
      Publication_Information:
        Publication_Place: Fort Worth, Texas
        Publisher:
          U.S. Department of Agriculture, Natural Resources
          Conservation Service
      Other_Citation_Details: mt644
      Online_Linkage: https://websoilsurvey.sc.egov.usda.gov/
  Description:
    Abstract:
      This data set is a digital soil survey and generally is the most
      detailed level of soil geographic data developed by the National
      Cooperative Soil Survey. The information was prepared by digitizing
      maps, by compiling information onto a planimetric correct base
      and digitizing, or by revising digitized maps using remotely
      sensed and other information.

      This data set consists of georeferenced digital map data and
      computerized attribute data. The map data are in a soil survey area
      extent format and include a detailed, field verified inventory
      of soils and miscellaneous areas that normally occur in a repeatable
      pattern on the landscape and that can be cartographically shown at
      the scale mapped. A special soil features layer (point and line
      features) is optional. This layer displays the location of features
      too small to delineate at the mapping scale, but they are large
      enough and contrasting enough to significantly influence use and
      management. The soil map units are linked to attributes in the
      National Soil Information System relational database, which gives
      the proportionate extent of the component soils and their properties.
    Purpose:
      SSURGO depicts information about the kinds and distribution of
      soils on the landscape. The soil map and data used in the SSURGO
      product were prepared by soil scientists as part of the National
      Cooperative Soil Survey.
    Supplemental_Information:
      Digital versions of hydrography, cultural features, and other
      associated layers that are not part of the SSURGO data set may be
      available from the primary organization listed in the Point of
      Contact.
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 19990519
        Ending_Date: 20200604
    Currentness_Reference: publication date
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -113.303
      East_Bounding_Coordinate: -112.306
      North_Bounding_Coordinate: 47.136
      South_Bounding_Coordinate: 46.266
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: soil survey
      Theme_Keyword: soils
      Theme_Keyword: Soil Survey Geographic
      Theme_Keyword: SSURGO
    Place:
      Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
      Place_Keyword: Montana
      Place_Keyword: Powell County
      Place_Keyword: Marcum Mountain Quadrangle
      Place_Keyword: Moose Creek Quadrangle
      Place_Keyword: Helmville Quadrangle
      Place_Keyword: Nevada Lake Quadrangle
      Place_Keyword: Finn Quadrangle
      Place_Keyword: Nevada Mountain Quadrangle
      Place_Keyword: Bailey Mountain Quadrangle
      Place_Keyword: Windy Rock Quadrangle
      Place_Keyword: Gravely Mountain Quadrangle
      Place_Keyword: Ophir Creek Quadrangle
      Place_Keyword: Esmeralda Hill Quadrangle
      Place_Keyword: Greenhorn Mountain Quadrangle
      Place_Keyword: Griffin Creek Quadrangle
      Place_Keyword: Garrison Quadrangle
      Place_Keyword: Luke Mountain Quadrangle
      Place_Keyword: Avon Quadrangle
      Place_Keyword: Elliston Quadrangle
      Place_Keyword: MacDonald Pass Quadrangle
      Place_Keyword: Rock Creek Lake Quadrangle
      Place_Keyword: Conleys Lake Quadrangle
      Place_Keyword: Deer Lodge Quadrangle
      Place_Keyword: Baggs Creek Quadrangle
      Place_Keyword: Bison Mountain Quadrangle
      Place_Keyword: Three Brothers Quadrangle
      Place_Keyword: Mount Powell Quadrangle
      Place_Keyword: Racetrack Quadrangle
      Place_Keyword: Orofino Creek Quadrangle
      Place_Keyword: Sugarloaf Mountain Quadrangle
      Place_Keyword: Bata Mountain Quadrangle
      Place_Keyword: Chamberlain Mountain Quadrangle
      Place_Keyword: Browns Lake Quadrangle
      Place_Keyword: Elevation Mountain Quadrangle
      Place_Keyword: Wild Horse Parks Quadrangle
      Place_Keyword: Chimney Lakes Quadrangle
      Place_Keyword: Drummond Quadrangle
      Place_Keyword: Limestone Ridge Quadrangle
      Place_Keyword: Dunkleberg Creek Quadrangle
      Place_Keyword: Coopers Lake Quadrangle
      Place_Keyword: Arrastra Mountain Quadrangle
      Place_Keyword: Morrell Mountain Quadrangle
      Place_Keyword: Dunham Point Quadrangle
      Place_Keyword: Woodworth Quadrangle
      Place_Keyword: Ovando Quadrangle
      Place_Keyword: Ovando Mountain Quadrangle
  Access_Constraints: None
  Use_Constraints:
    The U.S. Department of Agriculture, Natural Resources Conservation
    Service, should be acknowledged as the data source in products
    derived from these data.

    This data set is not designed for use as a primary regulatory tool
    in permitting or citing decisions, but may be used as a reference
    source. This is public information and may be interpreted by
    organizations, agencies, units of government, or others based on
    needs; however, they are responsible for the appropriate
    application. Federal, State, or local regulatory bodies are not to
    reassign to the Natural Resources Conservation Service any
    authority for the decisions that they make. The Natural Resources
    Conservation Service will not perform any evaluations of these maps
    for purposes related solely to State or local regulatory programs.

    Photographic or digital enlargement of these maps to scales greater
    than at which they were originally mapped can cause misinterpretation
    of the data. If enlarged, maps do not show the small areas of
    contrasting soils that could have been shown at a larger scale. The
    depicted soil boundaries, interpretations, and analysis derived from
    them do not eliminate the need for onsite sampling, testing, and
    detailed study of specific sites for intensive uses. Thus, these data
    and their interpretations are intended for planning purposes only.
    Digital data files are periodically updated. Files are dated, and
    users are responsible for obtaining the latest version of the data.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service
      Contact_Position: State Soil Scientist
      Contact_Address:
        Address_Type: mailing address
        Address: Room 443
        Address: 10 East Babcock Street
        City: Bozeman
        State_or_Province: MT
        Postal_Code: 59715-4704
      Contact_Voice_Telephone: 406-587-6730
      Contact_TDD/TTY_Telephone: 800-877-8339
      Contact_Facsimile_Telephone: 406-587-6761
      Contact_Electronic_Mail_Address: alex.dado@usda.gov
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      The attribute accuracy is tested by manual
      comparison of the source with hard copy plots and/or symbolized
      display of the map data on an interactive computer graphic system.
      Selected attributes that cannot be visually verified on plots or
      on screen are interactively queried and verified on screen. In
      addition, the attributes are tested against a master set of valid
      attributes. All attribute data conform to the attribute codes in
      the signed classification and correlation document and amendment(s).
  Logical_Consistency_Report:
    Certain node/geometry and topology GT- polygon/chain relationships
    are collected or generated to satisfy topological requirements
    (the GT-polygon corresponds to the soil delineation). Some of these
    requirements include: chains must begin and end at nodes, chains
    must connect to each other at nodes, chains do not extend through
    nodes, left and right GT-polygons are defined for each chain
    element and are consistent throughout, and the chains representing
    the limits of the file are free of gaps. The tests of logical
    consistency are performed using vendor software. All internal
    polygons are tested for closure with vendor software and are checked
    on hard copy plots. All data are checked for common soil lines (i.e.,
    adjacent polygons with the same label). Edge locations generally do
    not deviate from centerline to centerline by more than 0.01 inch.
    This survey has an exact line and attribute data join with the
    soil surveys of Granite County Area, Deer Lodge County Area. This
    survey has an acceptable join by major landform delineations to the
    Missoula County Area, and Lewis and Clark County Area, Montana
    soil surveys.
  Completeness_Report:
    A map unit is a collection of areas defined and named in terms of
    their soil components or miscellaneous areas or both. Each map
    unit differs in some respect from all others in a survey area and
    each map unit has a symbol that uniquely identifies the map unit
    on a soil map. Each individual area, point, or line so identified
    on the map is a delineation.

    Soil Scientists identify small areas of soils or miscellaneous areas
    that have properties and behavior significantly different than the
    named soils in the surrounding map unit. These minor components
    may be indicated as special features. If they have a minimal effect
    on use and management, or could not be precisely located, they may
    not be indicated on the map.

    A map unit has specified kinds of soils or miscellaneous areas
    (map unit components), each with a designated range in
    proportionate extent. Map units include one or more kinds of soil
    or miscellaneous area. Miscellaneous areas are areas that have little
    or no recognizable soil.

    Specific National Cooperative Soil Survey standards and procedures
    were used in the classification of soils, design and name of map
    units, and location of special soil features. These standards are
    outlined in Agricultural Handbook 18, Soil Survey Manual, 1993,
    USDA, NRCS; Agricultural Handbook 436, Soil Taxonomy, 1995,
    USDA, NRCS; and all Amendments; Keys to Soil Taxonomy,
    (current issue) USDA, NRCS; National Soil Survey
    Handbook, title 430-VI,(current issue) USDA, NRCS.

    The actual composition and interpretive purity of the map unit
    delineations were based on data collected by scientists during
    the course of preparing the soil maps. Adherence to National
    Cooperative Soil Survey standards and procedures is based on
    peer review, quality control, and quality assurance. Quality
    control is outlined in the memorandum of understanding for the
    soil survey area and in documents that reside with the Natural
    Resources Conservation Service state soil scientist. Four kinds
    of map units are used in soil surveys: consociations, complexes,
    associations, and undifferentiated groups.

    Consociations - Consociations are named for the dominant soil.
    In a consociation, delineated areas use a single name from the
    dominant component in the map unit. Dissimilar components are
    minor in extent. The soil component in a consociation may be
    identified at any taxonomic level. Soil series is the lowest
    taxonomic level. A consociation that is named as a miscellaneous
    area is dominantly that kind of area and minor components do not
    significantly affect the use of the map unit. The total amount of
    dissimilar inclusions of other components in a map unit generally
    does not exceed about 15 percent if limiting and 25 percent if
    nonlimiting. A single component of a dissimilar limiting inclusion
    generally does not exceed 10 percent if very contrasting.

    Complexes and associations - Complexes and associations consist
    of two or more  dissimilar components that occur in a regularly
    repeating pattern. The total amount of other dissimilar components
    is minor extent. The following arbitrary rule determines whether
    complex or association is used in the name. The major components
    of an association can be separated at the scale of mapping. In
    either case, because the major components are sufficiently different
    in morphology or behavior, the map unit cannot be called a
    consociation. In each delineation of a complex or an association,
    each major component is normally present though their proportions
    may vary appreciably from one delineation to another. The total
    amount of inclusions in a map unit that are dissimilar to any of
    the major components does not exceed 15 percent if limiting and
    25 percent if nonlimiting. A single kind of dissimilar limiting
    inclusion usually does not exceed 10 percent.

    Undifferentiated groups - Undifferentiated groups consist of two
    or more components that are not consistently associated
    geographically and, therefore, do not always occur together in
    the same map delineation. These components are included in the
    same named map unit because their use and management are the same
    or very similar for common uses. Generally they are grouped together
    because some common feature, such as steepness, stoniness, or
    flooding, determines their use and management. If two or more
    additional map units would serve no useful purpose, they may be
    included in the same unit. Each delineation has at least one of the
    major components, and some may have all of them. The same principles
    regarding the proportion of minor components that apply to
    consociations also apply to undifferentiated groups. The same
    principles regarding proportion of inclusion apply to
    undifferentiated groups as to consociations.

    Minimum documentation consists of three complete soil profile
    descriptions that are collected for each soil added to the legend,
    one additional per 3,000 acres mapped; three 10 observation
    transects for each map unit, one additional 10 point transect per
    3,000 acres.

    A defined standard or level of confidence in the interpretive
    purity of the map unit delineations is attained by adjusting the
    kind and intensity of field investigations. Field investigations
    and data collection are carried out in sufficient detail to name
    map units and to identify accurately and consistently areas of
    about 4 acres.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        The accuracy of these digital data is based upon their
        compilation to base maps that meet National Map
        Accuracy Standards at a scale of 1 inch equals 1,000
        feet. The difference in positional accuracy between the
        soil boundaries and special soil features locations in the
        field and their digitized map locations is unknown. The
        locational accuracy of soil delineations on the ground varies
        with the transition between map units.

        For example, on long gently sloping landscapes the transition
        occurs gradually over many feet. Where landscapes change
        abruptly from steep to level, the transition will be very
        narrow. Soil delineation boundaries and special soil features
        generally were digitized within 0.01 inch of their locations on
        the digitizing source. The digital map elements are edge matched
        between data sets. The data along each quadrangle edge are
        matched against the data for the adjacent quadrangle. Edge
        locations generally do not deviate from centerline to centerline
        by more than 0.01 inch.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1972-1991
          Title: multiple 7.5 minute topographic quadrangles
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Reston, Virginia
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: stable-base material
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1975
            Ending_Date: 1992
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: USGS1
      Source_Contribution:
        base maps for elevation information in mapping soils,
        special features and as reference in compilation of cultural features.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1972-1991
          Title: multiple 2.5 X 7.5 minute orthophotos
          Geospatial_Data_Presentation_Form: remote sensing imagery
          Publication_Information:
            Publication_Place: Salt Lake City, Utah
            Publisher:
              U.S. Department of Agriculture,
              Agricultural Stabilization and Conservation Service
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: stable-base material
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1986
            Ending_Date: 1991
        Source_Currentness_Reference: 1996
      Source_Citation_Abbreviation: USGS2
      Source_Contribution: compilation base
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1976
          Title: quad centered photographs
          Geospatial_Data_Presentation_Form: remote sensing imagery
          Publication_Information:
            Publication_Place: Salt Lake City, Utah
            Publisher:
              U.S. Department of Agriculture,
              Agricultural Stabilization and Conservation Service
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: stable-base material
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1976
            Ending_Date: 1980
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: USGS3
      Source_Contribution:
        field mapping base for about 30 percent
        of the survey area
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1980-1989
          Title: quad centered photographs
          Geospatial_Data_Presentation_Form: remote sensing imagery
          Publication_Information:
            Publication_Place: Salt Lake City, Utah
            Publisher:
              U.S. Department of Agriculture,
              Agricultural Stabilization and Conservation Service
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: stable-base material
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1980
            Ending_Date: 1989
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: USGS4
      Source_Contribution:
        field mapping base for about 70 percent
        of the survey area, earlier mapping largely remapped on this imagery
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: unpublished material
          Title: annotation overlay
          Geospatial_Data_Presentation_Form: map
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: stable-base material
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1996
        Source_Currentness_Reference: 1996
      Source_Citation_Abbreviation: NRCS1
      Source_Contribution: scan source
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Butte Silverbow Planning Department
          Publication_Date: unpublished material
          Title: digitized soils of Powell County Area, Montana
          Geospatial_Data_Presentation_Form: map
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: magnetic tape
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1996
        Source_Currentness_Reference: 1996
      Source_Citation_Abbreviation: BSPD1
      Source_Contribution:
        digital soils data containing area and special
        features
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: unpublished material
          Title: digitized soil survey of Powell County Area, Montana
          Geospatial_Data_Presentation_Form: map
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: magnetic tape
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1999
        Source_Currentness_Reference: 1999
      Source_Citation_Abbreviation: NRCS2
      Source_Contribution:
        revised digital soils data containing area and special
        soil features of the soil survey of Powell County Area, Montana for
        SSURGO
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: 1999
          Title:
            Soil Survey Geographic (SSURGO) database for Powell
            County Area, Montana
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Ft. Worth, Texas
            Publisher:
              U.S. Department of Agriculture,
              Natural Resources Conservation Service,
              National Cartography and Geospatial Center
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2002
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: NRCS3
      Source_Contribution: source used to apply digital revisions
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture, Natural Resources
            Conservation Service
          Publication_Date: 2002
          Title:
            Soil Survey Geographic (SSURGO) database for Powell County
            Area, Montana
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Ft. Worth, Texas
            Publisher:
              U.S. Department of Agriculture, Natural Resources
              Conservation Service, National Cartography and
              Geospatial Center
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2003
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: NRCS4
      Source_Contribution: source used to apply revisions
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Department of Agriculture
          Publication_Date: 2003
          Title:
            National Soil Information System (NASIS) database for
            Powell County Area, Montana
          Geospatial_Data_Presentation_Form: tabular digital data
          Publication_Information:
            Publication_Place: Fort Collins, Colorado
            Publisher:
              U.S. Department of Agriculture, Natural Reources
              Conservation Service, Information Technology Center
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2003
        Source_Currentness_Reference: export certification date
      Source_Citation_Abbreviation: NRCS5
      Source_Contribution: tabular data linked to spatial soil data
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: unpublished material
          Title: MrSID compressed image for Powell County Area, Montana
          Geospatial_Data_Presentation_Form: map
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: CD-ROM
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2003
        Source_Currentness_Reference: 2003
      Source_Citation_Abbreviation: NRCS6
      Source_Contribution: NAD83 ortho imagery used for quality control
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: unpublished material
          Title:
            ARC INTERCHANGE files for the survey of Powell County Area,
            Montana
          Geospatial_Data_Presentation_Form: map
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: CD-ROM
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2003
        Source_Currentness_Reference: 2003
      Source_Citation_Abbreviation: NRCS7
      Source_Contribution:
        digital information containing area and special
        soil features for evaluation for SSURGO
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: 2003
          Title: National Soil Information System (NASIS) data base
          Geospatial_Data_Presentation_Form: unknown
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: database
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2003
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: NASIS
      Source_Contribution: attribute (tabular) information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: unpublished material
          Title:
            ARC GIS GEODATABASE files for the soil survey of
            Powell County Area, Montana
          Geospatial_Data_Presentation_Form: map
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: CD-ROM
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2006
        Source_Currentness_Reference: 2006
      Source_Citation_Abbreviation: NRCS8
      Source_Contribution:
        digital information containing area and special
        soil features for evaluation
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture, Natural Resources
            Conservation Service
          Publication_Date: 2006
          Title:
            National Soil Information System (NASIS) database for
            Powell County Area, Montana
          Geospatial_Data_Presentation_Form: tabular digital data
          Publication_Information:
            Publication_Place: Fort Collins, Colorado
            Publisher:
              U.S. Department of Agriculture, Natural Resources
              Conservation Service, Information Technology Center
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2006
        Source_Currentness_Reference: export certification date
      Source_Citation_Abbreviation: NRCS9
      Source_Contribution:
        map unit legend used for comparison to spatial
        map unit labels
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture,
            Natural Resources Conservation Service
          Publication_Date: unpublished material
          Title:
            ArcGIS geodatabase files for the soil survey of
            Powell County Area, Montana
          Geospatial_Data_Presentation_Form: digitized vector data
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 20100121
        Source_Currentness_Reference: 2010
      Source_Citation_Abbreviation: NRCS10
      Source_Contribution:
        digital information containing area and special
        soil features for evaluation
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture, Natural Resources
            Conservation Service
          Publication_Date: 2010
          Title:
            National Soil Information System (NASIS) database for
            Powell County Area, Montana
          Geospatial_Data_Presentation_Form: tabular digital data
          Publication_Information:
            Publication_Place: Fort Collins, Colorado
            Publisher:
              U.S. Department of Agriculture, Natural Resources
              Conservation Service, Information Technology Center
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 20100121
        Source_Currentness_Reference: export certification date
      Source_Citation_Abbreviation: NRCS11
      Source_Contribution:
        map unit legend used for comparison to spatial
        map unit labels
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            USDA Farm Service Agency,
            USDA-FSA Aerial Photography Field Office (APFO)
          Publication_Date: 20120101
          Title: 2012 National Agricultural Imagery Program (NAIP) Imagery
      Type_of_Source_Media: onLine
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 20120101
            Ending_Date: 20121231
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: NAIP1
      Source_Contribution:
        used for update mapping, quality control of line placement
        and map unit concepts
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 20160101
          Title: National Elevation Dataset 10M
      Type_of_Source_Media: onLine
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 20160101
            Ending_Date: 20160801
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: USGS5
      Source_Contribution: used for validation of line placement and map unit concepts
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 20160101
          Title: USGS Digital Raster Graphic Program
      Type_of_Source_Media: onLine
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 20160101
            Ending_Date: 20160801
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: USGS6
      Source_Contribution: used for validation of line placement and map unit concepts
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Agriculture, Natural Resources
            Conservation Service
          Publication_Date: unpublished material
          Title: region 4 soils geodatabase
          Geospatial_Data_Presentation_Form: file geodatabase
      Type_of_Source_Media: vector digital data
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 2006
            Ending_Date: 2018
        Source_Currentness_Reference: SSURGO publication date
      Source_Citation_Abbreviation: NRCS12
      Source_Contribution: Source of digital revision - recreated yearly
    Process_Step:
      Process_Description:
        Field procedures for the second order soil survey
        included plotting of soil boundaries determined by field observation
        and by interpretation of remotely sensed data. Boundaries
        were verified at closely spaced intervals, and the soils in each
        delineation were identified by traversing and transecting the
        landscape. Soil scientists described and sampled the soils, analyzed
        samples in the laboratory, and statistically analyzed the data. The
        classification and map unit names were finalized at the final
        correlation in 1995.
      Source_Used_Citation_Abbreviation: USGS1, USGS3, USGS4
      Process_Date: 1995
    Process_Step:
      Process_Description:
        Soil line delineations and map unit labels from
        the quad centered photographs were compiled to 2.5 X 7.5 minute
        orthophotos by soil scientists on staff at the Natural
        Resources Conservation Service.  Annotation overlays were then
        registered to the 2.5 X 7.5 minute orthophotos, and soil
        lines and map unit symbols were transferred by a cartographic
        technician in Dillon, Montana.
      Source_Used_Citation_Abbreviation: NRCS1, USGS2, USGS3, USGS4
      Process_Date: 1995
    Process_Step:
      Process_Description:
        Digitizing of the soil survey was initiated through
        the efforts of Stewart Kirpatrick, Tom Tully and Keith Blount of the
        Butte Silverbow Planning Department in Butte, Montana.  The annotated
        overlays were sent to SMD Engineering in Helena, Montana for scanning.
        The annotated overlays were scanned on an Ideal Contex FSSS 8000
        scanner at 300 DPI.  The scanned files were forwarded to the Butte
        Silverbow Planning Department for further processing.  The scanned
        files were converted using ARC/INFO, Version 7.0.1 ImageGrid.  Four
        corners of the 7.5 minute quadrangle were maintained during data
        collection.  The polygons were labeled and soil lines edgematched
        between quadrangles.  The coverages were written to MOSS files and
        forwarded to the Montana Digitizing Unit in Bozeman, Montana for
        further processing and quality assurance.
      Source_Used_Citation_Abbreviation: NRCS1, USGS2, BSPD1
      Process_Date: 1996
    Process_Step:
      Process_Description:
        Cartographic technicians on staff at the Montana
        Digitizing Unit in Bozeman, Montana registered the annotated overlays
        to the orthophotos and transferred water boundary lines.  The
        MOSS files from the Butte Silverbow Planning Department were converted
        to LT4X maps.  The LT4X maps were registered to the annotated
        overlays and the water boundary lines were hand digitized.  The
        county boundary lines were manually digitized using the topographic
        quadrangles.  Special features were manually digitized
        from the orthophotos.  The LT4X maps for area and special
        features were created and maintained in North American Datum of
        1927, using LT4X Version 4.11. Initial quality assurance was
        accomplished using LT4X macros.  Label errors and line mismatches were
        noted and sent to a soil scientist for edits.  The edits were
        applied in LT4X, Version 4.11.  DLG-3 files were written using
        SSURGO_area and SSURGO_spec options in LT4X.  The DLG-3 files were
        forwarded to certification staff member at the Montana Digitizing Unit
        in Bozeman, Montana for further quality assurance and certification.
      Source_Used_Citation_Abbreviation: USGS1, USGS2, NRCS1, BSPD1, NRCS2
      Process_Date: 1999
    Process_Step:
      Process_Description:
        The DLG-3 files were imported for verification in
        ARC/INFO Version 4.12 by cartographic technicians on staff at the
        Montana Digitizing Unit in Bozeman, Montana.  ARCEDIT was used to
        correct node mismatches and label errors.  New DLG-3 files were
        written.  The DLG-3 files were forwarded to the National Cartography
        and Geospatial Center in Ft. Worth, Texas for archiving and
        distribution.
      Source_Used_Citation_Abbreviation: NRCS2
      Process_Date: 1999
    Process_Step:
      Process_Description:
        The Map Unit Interpretations Record data base was
        developed by the Natural Resources Conservation Service soil
        scientists according to national standards and updated to reflect
        changes in interpretations.
      Source_Used_Citation_Abbreviation: USGS1, USGS3, USGS4
      Process_Date: 1999
    Process_Step:
      Process_Description:
        The online SSURGO data were imported to ARC/INFO,
        Version 7.2.1 at the Natural Resources Conservation Service, Montana
        Digitizing Unit.  The SSURGO data were processed through revised
        evaluation program macros dated October 1998.  ARCEDIT was used to
        join adjacent survey boundaries.  Minor codes were renamed to link
        spatial data map unit labels to the National Soil Information
        System data base.  New DLG-3's were written.  The data were
        forwarded to the National Cartography and Geospatial Center in
        Ft. Worth, Texas for archiving and distribution.
      Source_Used_Citation_Abbreviation: NRCS3
      Process_Date: 2002
    Process_Step:
      Process_Description:
        The National Soil Information System data base
        was developed by Natural Resources Conservation Service soil
        scientists according to national standards.
      Source_Used_Citation_Abbreviation: USGS1, USGS3, USGS4
      Process_Date: 2002
    Process_Step:
      Process_Description:
        The SSURGO survey-wide coverages and MrSID compressed imagery were
        imported to ARC 8.3 ArcMap by a soil scientist on staff at the
        Natural Resources Conservation Service state office. Topology tools
        were used to revise temporal areas.  Small water areas were
        considered for special spot features labeled WAT.  The data were
        compared to the NASIS tabular information.  ARC INTERCHANGE
        files were written, then forwarded to certification staff at the
        Montana Digitizing Unit for verification for SSURGO.
      Source_Used_Citation_Abbreviation: NRCS4, NRCS5, NRCS6, NRCS7
      Process_Date: 2003
    Process_Step:
      Process_Description:
        The ARC INTERCHANGE files and NASIS information
        were imported to ARC/INFO, Version 8.2 by certification staff at the
        Montana Digitizing Unit.  The data were processed through evaluation
        macros dated June 2003. Boundaries were validated to adjacent soil
        survey areas. The data were forwarded to the National Cartography and
        Geospatial Center in Ft. Worth, Texas for archiving and distribution.
      Source_Used_Citation_Abbreviation: NRCS5, NRCS7
      Process_Date: 2003
    Process_Step:
      Process_Description:
        The survey-wide coverages from the online SSURGO data were imported to
        ARC/INFO 9.1 by certification staff at the Montana Digitizing Unit. Evaluation
        macros of June 2004 were applied to the data. Map unit labels were compared
        to an approved map unit legend from the National Soil Information System data
        base.  ARCEDIT was used to join to adjacent survey boundaries and verify previous
        adjacent survey joins. The data were uploaded to the soil data warehouse staging
        server.

        7/7/06 update: The following edit tasks performed: Verify Pond Freq where Null
        with "none" Component taxonomic validation(added superactive in many cases) Ensure
        veg. production for all soil components Global assign linear-linear to most all
        landforms, some already to proper resolution. At component level (those named as
        series only)...Populate: ...landform ...parent material ...horizon designations ...
        Representative
        textures ...Kf below the surface ...Replace Nulls for CaCO3, Gypsum, and SAR with
        0 ...horizon structure (representative) ...Horizon and component validations run
        and resolved. Included generated national non-tech description. This issue included
        both major and minor components.  Spatial edits reflect the exact join accomplished
        with MT635 and MT605 - Forest Service surveys.
      Source_Used_Citation_Abbreviation: NRCS8, NRCS9
      Process_Date: 2006
    Process_Step:
      Process_Description:
        The 3/23/07 issue reflects addition of MT Sprinker Interpretation
        that failed in the last download.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20070323
    Process_Step:
      Process_Description:
        The 5/10/07 update includes refreshed Montana Modeled non-irrigated
        small grain yields. Adds the Montana sprinkler irrigation interpretation.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20070510
    Process_Step:
      Process_Description:
        The 8/20/09 update reflects adding/refreshing 11 national
        BLM interpretations. No edits to spatial data.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20090820
    Process_Step:
      Process_Description:
        The survey-wide ArcGIS geodatabase from the online SSURGO data were
        imported to ARC/INFO 9.2 by certification staff at the Montana
        Digitizing Unit. Topology errors on the boundary, that were
        flagged in prepartation for the National Soils Geospatial Database,
        were corrected as directed in the National Bulletin: 430-9-5.
        Evaluation macros of June 2004 were applied to the
        data. Map unit labels were compared to an approved map unit legend
        from the National Soil Information System data base.  ARCGIS was
        used to join to adjacent survey boundaries and verify previous
        adjacent survey joins. The data were uploaded to the soil data
        warehouse staging server.
      Source_Used_Citation_Abbreviation: NRCS10, NRCS11
      Process_Date: 20100121
    Process_Step:
      Process_Description:
        The 2/2/10 update reflects minor boundary edits.
        No substantive attribute or spatial edits.
        This work is to polish the data in preparation for
        the transactional National Soils Geodatabase.
        The Hydric List interpretation was refreshed.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20100202
    Process_Step:
      Process_Description:
        This update includes attribute data calculations for:
        Total Fragment Volume, KF-KW, Exchangeable Acidity, HSG, WEG-WEI,
        concrete corrosion, Steel corrosion, Tfactor, refresh generated
        brief non-tech description.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20100827
    Process_Step:
      Process_Description:
        The spatial data for Powell County Area, Montana
        soil survey area was downloaded from the Soil Data Mart on October 15, 2012.
        The individual shapefiles were appended into a geodatabase for region 4.
        The data were processed in ARCGIS 10.1 using a topology object with a
        0.1 meter cluster tolerance for the purpose of eliminating gaps and overlaps
        within the region 4 soils geodatabase.  Individual soil survey area data
        were exported as shapefiles from the regional geodatabase.  A datum
        transformation from NAD83 to WGS84 using the NAD_1983_To_WGS_1984_1 datum
        transformation method was applied to the data.  The data were checked with
        the SSURGO Evaluation scripts provided by U.S. Department of Agriculture,
        Natural Resources Conservation Service. The shapefiles were then uploaded
        to the soil data warehouse for archival and distribution.
      Source_Used_Citation_Abbreviation: NRCS12
      Process_Date: 2013
    Process_Step:
      Process_Description: The spatial data has been updated for joins with MT603.
      Source_Used_Citation_Abbreviation: USGS5, USGS6, NAIP1, NRCS12
      Process_Date: 20160805
    Process_Step:
      Process_Description:
        This version includes four new national interpretations:
        Farm and Garden Composting Facility Surface, Fragile Soil Index,
        National Commodity Crop Productivity Index (NCCPI) Ver 3.0
        and Soil Susceptibility to Compaction.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20170919
    Process_Step:
      Process_Description:
        The spatial data for the entire SSURGO database was recertified in October
        of 2019 to reduce storage requirements and to improve map display
        and geoprocessing performance.  The SSURGO data is internally managed
        using 12 Regional Transactional Spatial Databases (RTSD) that are in
        an ESRI File Geodatabase format.  The spatial extent of the RTSDs follow the
        Soil and Plant Science Division (SPSD) regional administrative boundaries.
        The XY coordinate system of this RTSD is USA Contiguous Albers Equal Area
        Conic USGS Version WKID: 102039 and has an XY storage precision of 0.001
        meters.  The RTSDs were recreated using a reduced storage precision of 0.1
        meters to reduce the physical size of the data.  The SSURGO data was also
        generalized by removing excess vertices, using a tolerance of 1 meter.
        The topology was validated at the CONUS level using a tolerance of 0.2
        meters.  This effort directly affects the gSSURGO and gNATSGO product since
        these deliverables are in a File Geodatabase format.
      Source_Used_Citation_Abbreviation: NRCS12
      Process_Date: 2019
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20190916
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20190916
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20200604
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20200604
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20200604
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20200604
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20210902
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20210902
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20220829
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20220829
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20230829
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20230829
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20230829
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20230829
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20240822
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20240822
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate, upon completion of data quality verification, determined
        that the tabular data should be released for official use. A
        selected set of map units and components in the soil survey legend was
        copied to a staging database, and rating values for selected
        interpretations were generated. The list of selected interpretations is
        stored in the database table named sainterp.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20240916
    Process_Step:
      Process_Description:
        The Natural Resources Conservation Service State Soil Scientist or
        delegate verified that the labels on the digitized soil map units
        link to map units in the tabular database, and certified the joined
        data sets for release to the Soil Data Warehouse. A system assigned
        version number and date stamp were added and the data were copied to
        the data warehouse. The tabular data for the map units and components
        were extracted from the data warehouse and reformatted into the soil
        data delivery data model, then stored in the Soil Data Mart. The spatial
        data were copied to the Soil Data Mart without change.
      Source_Used_Citation_Abbreviation: NASIS
      Process_Date: 20240916
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.000001
      Longitude_Resolution: 0.0000001
      Geographic_Coordinate_Units: decimal degrees
    Geodetic_Model:
      Horizontal_Datum_Name: World Geodetic System 1984
      Ellipsoid_Name: World Geodetic System 1984
      Semi-major_Axis: 6378137.00000
      Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: Special Soil Features
      Entity_Type_Definition:
        Special Soil Features represent soil, miscellaneous area, or landform
        features that are too small to be digitized as soil delineations
        (area features).
      Entity_Type_Definition_Source: Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS.
    Attribute:
      Attribute_Label: Special Soil Features Codes
      Attribute_Definition:
        Special Soil Features labels represent specific Special Soil
        Features. These features are identified with a descriptive
        label. The label is assigned to the point or line assigned
        to represent the feature on maps.
      Attribute_Definition_Source:
        Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS;
        National Soil Survey Handbook, Title 430-VI, part 647
        (current issue), USDA, NRCS.
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name:
            Classification and Correlation of the Soils of Powell County
            Area, Montana
          Codeset_Source:
            U.S. Department of Agriculture, Natural Resources
            Conservation Service
  Overview_Description:
    Entity_and_Attribute_Overview:
      Map Unit Delineations are closed polygons that may be dominated
      by a single soil or miscellaneous area component plus allowable
      similar or dissimilar soils, or they can be geographic mixtures
      of groups of soils or soils and miscellaneous areas.

      The map unit symbol uniquely identifies each closed map unit
      delineation. Each symbol corresponds to a map unit name. The
      map unit key is used to link to information in the National
      Soil Information System tables.

      Map Unit Delineations are described by the National Soil
      Information System database. This attribute database gives the
      proportionate extent of the component soils and the properties for
      each soil. The database contains both estimated and measured data
      on the physical and chemical soil properties and soil
      interpretations for engineering, water management, recreation,
      agronomic, woodland, range, and wildlife uses of the soil.

      The National Soil Information System database contains static
      metadata. It documents the data structure and includes such
      information as what tables, columns, indexes, and relationships
      are defined as well as a variety of attributes of each of these
      database objects. Attributes include table and column
      descriptions and detailed domain information.

      The National Soil Information System database also contains a
      distribution metadata. It records the criteria used for selecting
      map units and components for inclusion in the set of distributed
      data.

      Special features are described in the feature table.  It includes an
      area symbol, feature label, feature name, and feature description for
      each special and ad hoc feature in the survey area.
    Entity_and_Attribute_Detail_Citation:
      Soil Taxonomy: A basic system of soil classification for making and
      interpreting soil surveys. Agricultural Handbook 436, 1999, USDA, SCS.

      Keys to Soil Taxonomy (current issue), USDA, SCS.

      National Soil Survey Handbook, Title 430-VI, part 647 (current
      issue), USDA, NRCS.

      Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS.
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization:
          U.S. Department of Agriculture, Natural
          Resources Conservation Service, National
          Geospatial Center of Excellence
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 501 West Felix Street, Building 23
        City: Fort Worth
        State_or_Province: Texas
        Postal_Code: 76115
      Contact_Voice_Telephone: 800 672 5559
      Contact_TDD/TTY_Telephone: 202 720 2600
      Contact_Facsimile_Telephone: 817 509 3469
  Resource_Description: Powell County Area, Montana SSURGO
  Distribution_Liability:
    Although these data have been processed successfully on a computer
    system at the U.S. Department of Agriculture, no warranty expressed
    or implied is made by the Agency regarding the utility of the data
    on any other system, nor shall the act of distribution constitute
    any such warranty. The U.S. Department of Agriculture will warrant
    the delivery of this product in computer readable format, and will
    offer appropriate adjustment of credit when the product is determined
    unreadable by correctly adjusted computer input peripherals, or
    when the physical medium is delivered in damaged condition. Request
    for adjustment of credit must be made within 90 days from the date
    of this shipment from the ordering site.

    The U.S. Department of Agriculture, nor any of its agencies are
    liable for misuse of the data, for damage, for transmission of
    viruses, or for computer contamination through the distribution of
    these data sets. The U.S. Department of Agriculture (USDA) prohibits
    discrimination in all its programs and activities on the basis of race,
    color, national origin, sex, religion, age, disability, political
    beliefs, sexual orientation, or marital or family status. (Not all
    prohibited bases apply to all programs.)
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ESRI shapefile
        Format_Information_Content: spatial
        Transfer_Size: 17.9
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: URL:http://DataGateway.nrcs.usda.gov/
          Access_Instructions:
            Select desired survey area at above Internet
            Web site. An email address is required for receipt of
            instructions on retrieval via anonymous FTP. Anticipate a
            delay between submission of request at Web site and receipt of
            email message.
    Fees:
      There is currently no direct charge for requesting data or for
      retrieval via FTP.
    Ordering_Instructions:
      Visit the above mentioned Internet Web Site, select state or
      territory, then select individual soil survey area of interest.
      Spatial line data and locations of special feature symbols are in
      ESRI ArcGIS shapefile, format. The National Soil Information
      System attribute soil data are available in variable length, pipe
      delimited, ASCII file format.
    Turnaround: Typically within four hours
Metadata_Reference_Information:
  Metadata_Date: 20240924
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service
      Contact_Position: State Soil Scientist
      Contact_Address:
        Address_Type: mailing address
        Address: Room 443
        Address: 10 East Babcock Street
        City: Bozeman
        State_or_Province: MT
        Postal_Code: 59715-4704
      Contact_Voice_Telephone: 406-587-6730
      Contact_TDD/TTY_Telephone: 800-877-8339
      Contact_Facsimile_Telephone: 406-587-6761
      Contact_Electronic_Mail_Address: alex.dado@usda.gov
  Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
