Metadata for Montana Public Land Survey Lines from 1:100,000 scale BLM maps.

- 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 Public Land Survey Lines from 1:100,000 scale BLM maps.
  Publication place: Helena, Montana
  Publisher: Montana State Library
  Other citation details:
    The former name of the data set on the NRIS web site was "ab106"
  Online linkage: ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/plss100k.zip
Abstract:
  Townships, Ranges, and Sections in Montana, including section lines "protracted" through unsurveyed areas by the BLM or Forest Service.
Purpose:
  For display of Public Land Survey and for location of features whose legal descriptions are known. More accurate section location data, along with quarter-quarter section data and government lot data, is available in the Geographic Coordinate Database (GCDB). The GCDB, however, does not include data for every section in Montana.
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
  PO 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:

Attribute accuracy report:
  Township and Range numbers were checked and corrected at the State Library until they were accurate. No errors in section numbers were found when they were spot-checked at the Library, but not every section was checked.
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
    Other citation details: 222 North 32nd Street, Billings, MT 59109 (406) 255-2953
    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: 06/01/1994
  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.
  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

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Spatial Data Organization Information:

Point and vector object information:
  SDTS object type: GT-polygon composed of chains
    SDTS object count: 159335

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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: 6378137.0
    Denominator of flattening ratio: 298.257

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Entity and Attribute Information:

Entity type label: PLSS.AAT
Entity type definition: Arc Attribute Table
  Attribute label: TYPE
    Attribute definition: Code for Land Survey Line Type

    Attribute Value | Definition of Attribute Value
    1 | Section Line
    2 | State Line
    3 | Township Line
    4 | Principal Meridian
    5 | Base Line

Entity type label: PLSS.PAT
Entity type definition: Polygon Attribute Table
  Attribute label: TOWN
    Attribute definition: Township Number
    Range domain minimum: 1
    Range domain maximum: 38
  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: 1
    Range domain maximum: 65
  Attribute label: E/W
    Attribute definition: Range East or West Designation

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

  Attribute label: SECTION
    Attribute definition: Section Number
    Range domain minimum: 1
    Range domain maximum: 36
  Attribute label: TRS
    Attribute definition:
      Combined Township, Range, Section
      This is a redefined item to create a unique ID for each section. Examples: "37.0N 31.0W 3" is Township 37 North, Range 31 West, section 3. "27.0N 21.5W23" is Township 27 North, Range 21 1/2 West, Section 23.

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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 Coverage Export file
    Online option:
    ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/E00/plss100k.zip
Standard order process:
  Digital form:
    Format name: ESRI Shapefile
    Online option:
    ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/plss100k.zip

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Metadata Reference Information:

Metadata date: 01/06/2014
Metadata review date: 04/17/2013
Metadata review date: 09/29/2004
Metadata review date: 03/21/2002
Metadata review date: 05/18/1996
Metadata contact:
  Montana State Library
  PO 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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