Metadata for Montana 1:100,000 Scale Township and Range Lines

- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Download full XML Metadata

Identification Information:

Citation:
  Originator: Montana State Library
  Publication date: 03/24/1996
  Title: Montana 1:100,000 Scale Township and Range Lines
  Publication place: Helena, Montana
  Publisher: Montana State Library
  Other citation details:
    The former name of the data set on the NRIS web site was "ab123"
  Online linkage: ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Township1996.zip
  Browse graphic file name: ftp://ftp.geoinfo.msl.mt.gov/Documents/Maps/Thumbnails/20090825_506_thumb.jpg
  Browse graphic file description: Thumbnail image of Montana Townships map
  Browse graphic file name: ftp://ftp.geoinfo.msl.mt.gov/Documents/Maps/Individual/20090825_506_2009_PubSurveyTownships.pdf
  Browse graphic file description: Montana Townships map
Abstract:
  Montana's townships, including townships "protracted" through unsurveyed areas by the BLM or Forest Service. These features were digitized by the Bureau of Land Management from 1:100,000 scale maps. The Montana State Library combined the individual quadrangles into a single layer, edgematched the features, and populated the attribute fields.
Time period of content:
  Beginning date: 1975
  Ending date: 1993
  Currentness reference: Publication Date
Status:
  Progress: Complete
Access constraints: None
Use constraints:
  Not for use at scales greater than 1:100000. Not for accurate determination of section corner or property line locations.
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Point of contact:
  Montana State Library
  P.O. Box 201800
  Helena, Montana 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov

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Data Quality Information:

Horizontal Positional Accuracy Report:
  Approximate horizontal accuracy is 51 meters, assuming source data meets National Map Accuracy Standards.
Lineage:
  Source information:
    Originator:
      National Mapping Division
      U.S. Geological Survey
    Publication date: 1975
    Title: 1:100,000-scale Quadrangle Public Land Survey mylars
    Publication place: Reston, VA
    Publisher: U.S. Geological Survey
    Source scale denominator: 100000
    Type of source media: mylar
    Source contribution: All of the coordinates were collected from these maps.
    Beginning date: 1975
    Ending date: 1993
  Source information:
    Originator: U.S. Bureau of Land Management Montana Office
    Publication date: Unpublished material
    Title: Public Land Survey Arc/Info coverages
    Source scale denominator: 100000
    Type of source media: Arc/Info E00 files on 8mm tape
    Source contribution: The data is an edited copy of this source.
    Calendar date: 03/21/1996
  Process step:
    Digitize the lines from the USGS mylar maps and code the arcs and polygons. This was performed by the BLM office in Billings using ADS software on their PRIME minicomputer.
  Process date: 06/1994
  Process step:
    Correct the projection definition of all BLM data and convert any single-precision coverages to double precision. Project coverages from UTM zone 12 coordinates to Albers.
  Process date: 03/21/1996
  Process step:
    Parse the LABEL item in the BLM PCODE file into separate Town, Range, and Section items in the PAT. Correct any errors in the PCODE file that make the parsing AML crash.
  Process date: 03/21/1996
  Process step:
    Add polygon attributes to BLM coverages that had no polygon attributes or no PCODE files.
  Process date: 03/21/1996
  Process step:
    View township, range, and section attributes of every coverage and correct errors.
  Process date: 03/21/1996
  Process step:
    Edit the data to remove more errors and edgematch adjacent quadrangles. Performed by Cedron Jones and Duane Lund at the State Library.
  Process date: 02/25/1997
  Process step:
    Re-code the arc attributes to distinguish between section lines, township lines, the Base Line and Principal Meridian, and the state outline. Drop the arc attribute from BLM, which were mostly missing.
  Process date: 05/21/1997
  Process step:
    Join the tiles into one coverage and dissolve the polygons to remove the internal section lines of each township.
  Process date: 05/21/1997
  Process step: Fix the town_range designation of half-townships.
  Process date: 03/27/2003

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Spatial Data Organization Information:

Point and vector object information:
  SDTS object type: G-polygon
    SDTS object count: 4210

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Spatial Reference Information:

Horizontal coordinate system definition:
  Grid coordinate system name: State Plane Coordinate System 1983
  SPCS zone identifier: 2500
  Lambert conformal conic:
  Standard parallel: 45
  Standard parallel: 49
  Longitude of central meridian: -109.5
  Latitude of projection origin: 44.25
  False easting: 600000.00000
  False northing: 0.00000
  Planar distance units: meters
  Geodetic model:
    Horizontal datum name: North American Datum of 1983
    Ellipsoid name: Geodetic Reference System 80
    Semi-major axis: 6378137
    Denominator of flattening ratio: 298.257

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Entity and Attribute Information:

Entity type label: Township1996.dbf
Entity type definition: Polygon Attribute Table
  Attribute label: FID
    Attribute definition: Shapefile sequence number
  Attribute label: Shape
    Attribute definition: Feature geometry
  Attribute label: Area
    Attribute definition: area of the polygon in square meters
  Attribute label: Perimeter
    Attribute definition: perimeter of the polygon in meters
  Attribute label: Township_
    Attribute definition: Sequence number from original coverage version of the data
  Attribute label: Township_I
    Attribute definition: ID number from original coverage version of the data
  Attribute label: TOWN
    Attribute definition: Township Number
    Range domain minimum: 0
    Range domain maximum: 37
  Attribute label: N_S
    Attribute definition: Township North or South Designation

    Attribute Value | Definition of Attribute Value
    N | Township North of the Base Line
    S | Township South of the Base Line

  Attribute label: RANGE
    Attribute definition: Range Number
    Range domain minimum: 0
    Range domain maximum: 63
  Attribute label: E_W
    Attribute definition: Range East or West Designation

    Attribute Value | Definition of Attribute Value
    W | Range West of the Principal Meridian
    E | Range East of the Principal Meridian

  Attribute label: TOWN_RANGE
    Attribute definition:
      Combined township, n-s, range, and e-w values that uniquely identify a township

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Distribution Information:

Distributor:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov
Resource description: Downloadable Data
Distribution liability:
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Standard order process:
  Digital form:
    Format name: ESRI Shapefile
    Online option:
    ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Township1996.zip

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Metadata Reference Information:

Metadata date: 01/08/2014
Metadata review date: 04/17/2013
Metadata review date: 09/29/2004
Metadata review date: 03/27/2003
Metadata review date: 01/16/1998
Metadata review date: 12/18/1997
Metadata contact:
  Montana State Library
  P.O. Box 201800
  Helena, Montana 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov

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