"MT051"|"Liberty County, Montana"|19|09/01/2021 21:15:22|17|09/01/2021 21:15:22|09/01/2021 00:09:52|"certified, all components"|"The ""35B ck4t-Assinniboine fine sandy loam, 0 to 4 percent slopes"" mapunit was combined with the ""35B 2vyrk-Assinniboine fine sandy loam, 0 to 4 percent slopes"" map unit as a result of the ""EVAL - MLRA 52 - Assinniboine fine sandy loam, 0 to 4 percent slopes"" EVAL project"".
The ""351B ck4s-Kenilworth-Fortbenton fine sandy loams, 0 to 4 percent slopes"" mapunit was combined with the ""351B 2zpd5-Kenilworth-Fortbenton fine sandy loams, 0 to 4 percent slopes"" map unit as a result of the ""EVAL - MLRA 52 - Kenilworth-Fortbenton fine sandy loams, 0 to 4 percent slopes"" EVAL project"".
The ""368C ck4x-Fortbenton-Hillon complex, 2 to 8 percent slopes"" mapunit was combined with the ""368C 2vysh-Fortbenton-Hillon complex, 2 to 8 percent slopes"" map unit as a result of the ""EVAL - MLRA 52 - Fortbenton-Hillon complex, 2 to 8 percent slopes"" EVAL project"".
The tabular database was edited and populated according to guidance in Exhibits A and B of National Instruction (NI-305), and Part 610 of the National Soil Survey Handbook. Any spatial data edits were certified correct by the Soil Survey region GIS specialist, State Soil Scientist (SSS), and by the National Digitizing Center. The SSS certified the data population for all map units, and concurred with correlation of all projects mentioned, as they were documented in Soil Survey Area Legend(s), and in the Project Correlation tables.

The SSS certified the data population for all map units, and concurred with correlation of all projects mentioned, as they were documented in Soil Survey Area Legend(s) and in the Project Correlation table.

This dataset also contains the following changes:

A. Recalculated all national, regional, and local interpretations for all components.

B. The dataset was populated with data elements needed to support the Water Erosion Prediction Project (WEPP).

C. The eleven national interpretations listed below are new for Fiscal Year 2021 or revised:

AGR - Industrial Hemp for Fiber and Seed Production
DHS - Emergency Land Disposal of Milk
ENG - Deep Infiltration Systems
ENG - Lined Retention Systems
ENG - Shallow Infiltration Systems
ENG - Unlined Retention Systems
ENG - Ground-based Solar Arrays, Ballast Anchor Systems
ENG - Ground-based Solar Arrays, Soil-based Anchor Systems
FOR - Drought Vulnerable Soils
SOH - Dynamic Soil Properties Response to Biochar
SOH - Limitations for Aerobic Soil Organisms"|"<metadata><idinfo><citation><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>20171003</pubdate><title>
Soil Survey Geographic (SSURGO) database for
Liberty County, Montana
</title><pubinfo><pubplace>Fort Worth, Texas</pubplace><publish>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</publish></pubinfo><othercit>mt051</othercit><onlink>URL:http://DataGateway.nrcs.usda.gov/</onlink></citeinfo></citation><descript><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.
</abstract><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.
</purpose><supplinf>
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.
</supplinf></descript><timeperd><timeinfo><rngdates><begdate>19990222</begdate><enddate>20171003</enddate></rngdates></timeinfo><current>publication date</current></timeperd><status><progress>Complete</progress><update>As needed</update></status><spdom><bounding><westbc>-111.409</westbc><eastbc>-110.743</eastbc><northbc>48.999</northbc><southbc>48.132</southbc></bounding></spdom><keywords><theme><themekt>None</themekt><themekey>soil survey</themekey><themekey>soils</themekey><themekey>Soil Survey Geographic</themekey><themekey>SSURGO</themekey></theme><place><placekt>USGS Geographic Names Information System (GNIS)</placekt><placekey>Montana</placekey><placekey>Liberty County</placekey><placekey>Berkholder Reservoir Quadrangle</placekey><placekey>Bingham Lake Quadrangle</placekey><placekey>Blair Ranch Quadrangle</placekey><placekey>Bobcat Coulee NE Quadrangle</placekey><placekey>Bobcat Coulee SE Quadrangle</placekey><placekey>Carlson Coulee Quadrangle</placekey><placekey>Chester Quadrangle</placekey><placekey>Chester NE Quadrangle</placekey><placekey>Chester NW Quadrangle</placekey><placekey>Circle Bridge Quadrangle</placekey><placekey>Galata Quadrangle</placekey><placekey>Goldstone SW Quadrangle</placekey><placekey>Goose Bill Butte NW Quadrangle</placekey><placekey>Grassy Butte Quadrangle</placekey><placekey>Hawley Hill Quadrangle</placekey><placekey>Haystack Butte Quadrangle</placekey><placekey>Inverness Quadrangle</placekey><placekey>Joplin Quadrangle</placekey><placekey>Knees NE Quadrangle</placekey><placekey>Laird Lake Quadrangle</placekey><placekey>Laird School Quadrangle</placekey><placekey>Lakey Ranch Quadrangle</placekey><placekey>Lothair Quadrangle</placekey><placekey>Lothair SW Quadrangle</placekey><placekey>McCarters Lake SE Quadrangle</placekey><placekey>Mount Lebanon Quadrangle</placekey><placekey>North Lothair School Quadrangle</placekey><placekey>Penzer School Quadrangle</placekey><placekey>Pondera School Quadrangle</placekey><placekey>Poverty Coulee Quadrangle</placekey><placekey>Poverty Coulee NE Quadrangle</placekey><placekey>Poverty Coulee SE Quadrangle</placekey><placekey>Rudyard NW Quadrangle</placekey><placekey>Sollid School Quadrangle</placekey><placekey>Tiber Quadrangle</placekey><placekey>Tiber Dam Quadrangle</placekey><placekey>Sagebrush Coulee Quadrangle</placekey><placekey>Uphill Creek Quadrangle</placekey><placekey>Vaver Reservoir Quadrangle</placekey><placekey>Whitlash Quadrangle</placekey></place></keywords><accconst>None</accconst><useconst>
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.
</useconst><ptcontac><cntinfo><cntorgp><cntorg>U.S. Department of Agriculture, Natural Resources Conservation Service</cntorg></cntorgp><cntpos>State Soil Scientist</cntpos><cntaddr><addrtype>mailing address</addrtype><address>Room 443</address><address>10 East Babcock Street</address><address/><address/><city>Bozeman</city><state>MT</state><postal>59715-4704</postal></cntaddr><cntvoice>406-587-6730</cntvoice><cnttdd>800-877-8339</cnttdd><cntfax>406-587-6761</cntfax><cntemail>alex.dado@usda.gov</cntemail></cntinfo></ptcontac></idinfo><dataqual><attracc><attraccr>
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).
</attraccr></attracc><logic>
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.
The quadrangles in this soil survey are edge matched to quadrangles
in adjacent soil surveys.
</logic><complete>
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 6 acres.
</complete><posacc><horizpa><horizpar>
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.
</horizpar></horizpa></posacc><lineage><srcinfo><srccite><citeinfo><origin>U.S. Geological Survey</origin><pubdate>1984</pubdate><title>multiple photographs</title><geoform>remote sensing image</geoform><pubinfo><pubplace>Salt Lake City, Utah</pubplace><publish>Agricultural Stabilization and Conservation Service</publish></pubinfo></citeinfo></srccite><srcscale>15840</srcscale><typesrc>paper</typesrc><srctime><timeinfo><rngdates><begdate>1986</begdate><enddate>1990</enddate></rngdates></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>USGS1</srccitea><srccontr>base materials for field mapping</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>U.S. Geological Survey</origin><pubdate>1974-1977</pubdate><title>multiple orthophotos, third quadrangle format</title><geoform>remote sensing image</geoform><pubinfo><pubplace>Denver, Colorado</pubplace><publish>U.S. Geological Survey</publish></pubinfo></citeinfo></srccite><srcscale>24000</srcscale><typesrc>stable-base material</typesrc><srctime><timeinfo><sngdate><caldate>1988</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>USGS2</srccitea><srccontr>
base maps for compilation of soils, special
features, publication of hardcopy maps, and as reference in
compilation of cultural features
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>U.S. Geological Survey</origin><pubdate>1964-1988</pubdate><title>multiple 7.5 minute topographic quadrangles</title><geoform>map</geoform><pubinfo><pubplace>Reston, Virginia</pubplace><publish>U.S. Geological Survey</publish></pubinfo></citeinfo></srccite><srcscale>24000</srcscale><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>1988</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>USGS3</srccitea><srccontr>
source material used for digitizing county
boundaries
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>unpublished material</pubdate><title>annotated overlay, full quadrangle format</title><geoform>map</geoform></citeinfo></srccite><srcscale>24000</srcscale><typesrc>stable-base material</typesrc><srctime><timeinfo><sngdate><caldate>1995</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>NRCS1</srccitea><srccontr>scan source</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>unpublished material</pubdate><title>digitized soils and special soil features of Liberty, Montana</title><geoform>map</geoform></citeinfo></srccite><srcscale>24000</srcscale><typesrc>magnetic tape</typesrc><srctime><timeinfo><sngdate><caldate>1996</caldate></sngdate></timeinfo><srccurr>1996</srccurr></srctime><srccitea>NRCS2</srccitea><srccontr>digital soils for SSURGO</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</origin><pubdate>1999</pubdate><title>
Soil Survey Geographic (SSURGO) database for
Liberty County, Montana
</title><geoform>map</geoform><pubinfo><pubplace>Ft. Worth, Texas</pubplace><publish>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</publish></pubinfo></citeinfo></srccite><srcscale>24000</srcscale><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>2002</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>NRCS3</srccitea><srccontr>
source used for digital revisions
boundaries
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</origin><pubdate>2002</pubdate><title>National Soil Information System (NASIS) data base</title><geoform>unknown</geoform><pubinfo><pubplace>Fort Collins, Colorado</pubplace><publish>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</publish></pubinfo></citeinfo></srccite><srcscale>24000</srcscale><typesrc>database</typesrc><srctime><timeinfo><sngdate><caldate>2002</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>NASIS</srccitea><srccontr>attribute (tabular) information</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</origin><pubdate>unpublished material</pubdate><title>
ARC SHAPE files for the survey of Liberty
County, Montana
</title><geoform>map</geoform></citeinfo></srccite><typesrc>CD-ROM</typesrc><srctime><timeinfo><sngdate><caldate>2006</caldate></sngdate></timeinfo><srccurr>2006</srccurr></srctime><srccitea>NRCS4</srccitea><srccontr>
digital information containing area and special
soil features for evaluation
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>2006</pubdate><title>
National Soil Information System (NASIS) database for
Liberty County, Montana
</title><geoform>tabular digital data</geoform><pubinfo><pubplace>Fort Collins, Colorado</pubplace><publish>
U.S. Department of Agriculture, Natural Resources
Conservation Service, Information Technology Center
</publish></pubinfo></citeinfo></srccite><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>2006</caldate></sngdate></timeinfo><srccurr>export certification date</srccurr></srctime><srccitea>NRCS5</srccitea><srccontr>
map unit legend used for comparison to spatial
map unit labels
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</origin><pubdate>unpublished material</pubdate><title>
ArcGIS geodatabase files for the soil survey of
Liberty County, Montana
</title><geoform>digitized vector data</geoform></citeinfo></srccite><srcscale>24000</srcscale><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>2010</caldate></sngdate></timeinfo><srccurr>2010</srccurr></srctime><srccitea>NRCS6</srccitea><srccontr>
digital information containing area and special
soil features for evaluation
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>2010</pubdate><title>
National Soil Information System (NASIS) database for
Liberty County, Montana
</title><geoform>tabular digital data</geoform><pubinfo><pubplace>Fort Collins, Colorado</pubplace><publish>
U.S. Department of Agriculture, Natural Resources
Conservation Service, Information Technology Center
</publish></pubinfo></citeinfo></srccite><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>2010</caldate></sngdate></timeinfo><srccurr>export certification date</srccurr></srctime><srccitea>NRCS7</srccitea><srccontr>
map unit legend used for comparison to spatial
map unit labels
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</origin><pubdate>unpublished material</pubdate><title>
ArcGIS geodatabase files for the soil survey of
Liberty County, Montana
</title><geoform>digitized vector data</geoform></citeinfo></srccite><srcscale>24000</srcscale><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>20101014</caldate></sngdate></timeinfo><srccurr>2010</srccurr></srctime><srccitea>NRCS8</srccitea><srccontr>
digital information containing area and special
soil features for evaluation
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>2010</pubdate><title>
National Soil Information System (NASIS) database for
Liberty County, Montana
</title><geoform>tabular digital data</geoform><pubinfo><pubplace>Fort Collins, Colorado</pubplace><publish>
U.S. Department of Agriculture, Natural Resources
Conservation Service, Information Technology Center
</publish></pubinfo></citeinfo></srccite><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>20101014</caldate></sngdate></timeinfo><srccurr>export certification date</srccurr></srctime><srccitea>NRCS9</srccitea><srccontr>
map unit legend used for comparison to spatial
map unit labels
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture,
Natural Resources Conservation Service
</origin><pubdate>unpublished material</pubdate><title>
ArcGIS geodatabase files for the soil survey of
Liberty County, Montana
</title><geoform>vector digital data</geoform></citeinfo></srccite><srcscale>24000</srcscale><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>20110315</caldate></sngdate></timeinfo><srccurr>2011</srccurr></srctime><srccitea>NRCS10</srccitea><srccontr>
digital information containing area and special
soil features for evaluation
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>2011</pubdate><title>
National Soil Information System (NASIS) database for
Liberty County, Montana
</title><geoform>tabular digital data</geoform><pubinfo><pubplace>Fort Collins, Colorado</pubplace><publish>
U.S. Department of Agriculture, Natural Resources
Conservation Service, Information Technology Center
</publish></pubinfo></citeinfo></srccite><typesrc>online</typesrc><srctime><timeinfo><sngdate><caldate>20110315</caldate></sngdate></timeinfo><srccurr>export certification date</srccurr></srctime><srccitea>NRCS11</srccitea><srccontr>
map unit legend used for comparison to spatial
map unit labels
</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</origin><pubdate>unpublished material</pubdate><title>region 10 soils geodatabase</title><geoform>file geodatabase</geoform></citeinfo></srccite><typesrc>vector digital data</typesrc><srctime><timeinfo><rngdates><begdate>2006</begdate><enddate>2018</enddate></rngdates></timeinfo><srccurr>SSURGO publication date</srccurr></srctime><srccitea>NRCS12</srccitea><srccontr>Source of digital revision - recreated yearly</srccontr></srcinfo><procstep><procdesc>
Field procedures for the second order soil survey
included plotting of soil boundaries determined by field observation
and by interpretations of stereo paired aerial photographs.
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,
and analyzed the samples in a laboratory.  Major field work was
completed in 1990.  The classification and map unit names were
finalized at the final correlation in November 1994.
</procdesc><srcused>USGS1</srcused><procdate>1994</procdate></procstep><procstep><procdesc>
Field maps at 1:24000 were manually compiled first
to 1:24000 orthophoto third-quadrangles and then transferred in ink
onto Hulen punch-registered matte film (5 mil) full 7.5 minute
quadrangle format overlays.  The soil delineation overlays were
scanned at a scanning resolution of 300 pixels per inch on an LDS4000
scanner.  Four control points corresponding to the four corners of the
quadrangles were used for registration during data collection.  The
processing, matching, labeling, and vector conversion and editing was
done in LT4X Version 4.02.  The data were exported using the export
digit command in LT4X Version 4.02 and imported into GRASS Version
4.13.  Special soil features were manually digitized in GRASS Version
4.13.  The data were created and maintained in North American Datum
of 1927 by cartographic technicians on staff at the USDA Natural
Resources Conservation Service in Bozeman, MT.  Quality control was
performed by soil scientists on staff at the USDA Natural Resources
Conservation Service in Bozeman, MT.  The data were written to
Digital Line Graph optional format with the v.export command in
GRASS Version 4.13.  The DLG-3 files were sent to the Montana
Digitizing Unit in Bozeman, MT for a quality assurance review.
</procdesc><srcused>USGS2, USGS3, NRCS1</srcused><procdate>1997</procdate></procstep><procstep><procdesc>
The DLG-3 files were imported into ARC/INFO Version
4.21 for adherence to SSURGO standards.  Extra vertices and pseudo
nodes were removed.  Label and node mismatches were corrected using
ARCEDIT.  New DLG-3 files were written.  The DLG-3 files were forwarded
the National Cartography and Geospatial Center in Ft. Worth, TX for
archiving and distribution.
</procdesc><srcused>USGS2, NRCS2</srcused><procdate>1999</procdate></procstep><procstep><procdesc>
The Map Unit Interpretations Record data base was
developed by the Natural Resources Conservation Service soil scientists
according to national standards.
</procdesc><srcused>USGS2</srcused><procdate>1999</procdate></procstep><procstep><procdesc>
The SSURGO data were imported into ARC/INFO,
Version 7.21 by certification staff at the Montana Digitizing Unit.
ARCEDIT was used to correct a map unit label on the Lothair Quadrangle.
Minor codes were renamed to link the spatial map unit labels to the
National Soil Information System data base.  New DLG-3 files were
written.  The data were forwarded to the National Cartography and
Geospatial Center in Ft. Worth, Texas for archiving and distribution.
</procdesc><srcused>USGS2, NRCS3</srcused><procdate>2002</procdate></procstep><procstep><procdesc>
The National Soil Information System data base
was developed by Natural Resources Conservation Service soil
scientists according to national standards.
</procdesc><srcused>USGS2</srcused><procdate>2002</procdate></procstep><procstep><procdesc>
The survey-wide Shapefiles from the 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.

6/19/06 update: The following edit tasks performed: Component Name set
to proper case Strip ""and similar soils"" from comp name Set and validate
map unit name case Flag minor components as ""NO"" Ensure veg. production
for all soil components At component level (those named as series only)...
Populate Albedo ...horizon structure ...slope shape ...landform ...parent
material ...horizon designations ...Representative textures ...Kf below
the surface ...Ran all validations and resolved. National Non-Tech generated.
</procdesc><srcused>NRCS4, NRCS5</srcused><procdate>2006</procdate></procstep><procstep><procdesc>
The full set of Military and Department of Homeland Security Interpretations
have been added.
</procdesc><srcused>NASIS</srcused><procdate>20060619</procdate></procstep><procstep><procdesc>
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.
</procdesc><srcused>NRCS6, NRCS7</srcused><procdate>20100104</procdate></procstep><procstep><procdesc>
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. Evaluation macros of July 2009 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.
</procdesc><srcused>NRCS8, NRCS9</srcused><procdate>20101014</procdate></procstep><procstep><procdesc>
Spatial edits occurred around the joins between MT041 and MT051.
The primary purpose of the edits was to ensure an exact spatial
join between the two survey areas. However, two polygons (one
set of map units), which join spatially, could not be joined at
the attribute level. The map units that did not join were: from
MT051 - 224E Hillon-Joplin loams, 8 to 25 percent slopes; and
from MT041 - 224D Hillon Joplin loams, 8 to 15 percent slopes. This
is considered an acceptable join until the Havre SSO can evaluate
these two map units.
The survey-wide ArcGIS geodatabase were imported to ARC/INFO 9.2
by certification staff at the Montana Digitizing Unit. Evaluation
macros of July 2009 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.
</procdesc><srcused>NRCS10, NRCS11</srcused><procdate>20110315</procdate></procstep><procstep><procdesc>
The spatial data for Liberty County, Montana soil survey area were
downloaded from the Soil Data Mart on October 15, 2012.
The individual shapefiles were appended into a geodatabase for
region 10. 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 10 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 uploaded to the soil data
warehouse for archival and distribution.
</procdesc><srcused>NRCS12</srcused><procdate>2013</procdate></procstep><procstep><procdesc>
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.
</procdesc><srcused>NRCS12</srcused><procdate>2019</procdate></procstep><procstep><procdesc>
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.
</procdesc><srcused>NASIS</srcused><procdate>20200605</procdate></procstep><procstep><procdesc>
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.
</procdesc><srcused>NASIS</srcused><procdate>20200605</procdate></procstep><procstep><procdesc>
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.
</procdesc><srcused>NASIS</srcused><procdate>20210901</procdate></procstep><procstep><procdesc>
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.
</procdesc><srcused>NASIS</srcused><procdate>20210901</procdate></procstep></lineage></dataqual><spdoinfo><direct>Vector</direct></spdoinfo><spref><horizsys><geograph><latres>0.000001</latres><longres>0.0000001</longres><geogunit>decimal degrees</geogunit></geograph><geodetic><horizdn>World Geodetic System 1984</horizdn><ellips>World Geodetic System 1984</ellips><semiaxis>6378137.00000</semiaxis><denflat>298.257222</denflat></geodetic></horizsys></spref><eainfo><detailed><enttyp><enttypl>Special Soil Features</enttypl><enttypd>
Special Soil Features represent soil, miscellaneous area, or landform
features that are too small to be digitized as soil delineations
(area features).
</enttypd><enttypds>Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS.</enttypds></enttyp><attr><attrlabl>Special Soil Features Codes</attrlabl><attrdef>
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.
</attrdef><attrdefs>
Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS;
National Soil Survey Handbook, Title 430-VI, part 647
(current issue), USDA, NRCS.
</attrdefs><attrdomv><codesetd><codesetn>Classification and Correlation of the Soils of Liberty County, Montana</codesetn><codesets>
U.S. Department of Agriculture, Natural Resources
Conservation Service
</codesets></codesetd></attrdomv></attr></detailed><overview><eaover>
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.
</eaover><eadetcit>
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.
</eadetcit></overview></eainfo><distinfo><distrib><cntinfo><cntorgp><cntorg>
U.S. Department of Agriculture, Natural
Resources Conservation Service, National
Geospatial Center of Excellence
</cntorg></cntorgp><cntaddr><addrtype>mailing and physical address</addrtype><address>501 West Felix Street, Building 23</address><city>Fort Worth</city><state>Texas</state><postal>76115</postal></cntaddr><cntvoice>800 672 5559</cntvoice><cnttdd>202 720 2600</cnttdd><cntfax>817 509 3469</cntfax></cntinfo></distrib><resdesc>Liberty County, Montana SSURGO</resdesc><distliab>
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.)
</distliab><stdorder><digform><digtinfo><formname>ESRI shapefile</formname><formcont>spatial</formcont><transize>27.6</transize></digtinfo><digtopt><onlinopt><computer><networka><networkr>URL:http://DataGateway.nrcs.usda.gov/</networkr></networka></computer><accinstr>
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.
</accinstr></onlinopt></digtopt></digform><fees>
There is currently no direct charge for requesting data or for
retrieval via FTP.
</fees><ordering>
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.
</ordering><turnarnd>Typically within four hours</turnarnd></stdorder></distinfo><metainfo><metd>20210901</metd><metc><cntinfo><cntorgp><cntorg>U.S. Department of Agriculture, Natural Resources Conservation Service</cntorg></cntorgp><cntpos>State Soil Scientist</cntpos><cntaddr><addrtype>mailing address</addrtype><address>Room 443</address><address>10 East Babcock Street</address><address/><address/><city>Bozeman</city><state>MT</state><postal>59715-4704</postal></cntaddr><cntvoice>406-587-6730</cntvoice><cnttdd>800-877-8339</cnttdd><cntfax>406-587-6761</cntfax><cntemail>alex.dado@usda.gov</cntemail></cntinfo></metc><metstdn>Content Standard for Digital Geospatial Metadata</metstdn><metstdv>FGDC-STD-001-1998</metstdv></metainfo></metadata>"|"13026"
