Metadata for Upper Clark Fork Public Land Survey Sections from 1:24,000 scale USGS quadrangles

- 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: 02/05/1992
  Title:
    Upper Clark Fork Public Land Survey Sections from 1:24,000 scale USGS quadrangles
  Publication place: Helena, Montana
  Publisher: Montana State Library
  Other citation details:
    The former name of this data set on the NRIS web site was "ab19"
  Browse graphic file name: ClarkFork24kPLSS1989.gif
  Browse graphic file name: quad_index.gif
Abstract:
  These data were formerly available from the Montana State Library web site but were removed because they are potentially out of date. Please contact the Federal Superfund Bureau of the Montana Department of Environmental Quality if you want these data so they may tell you if newer or better data are available. If the data are not available from the Department of Environmental Quality, you may request a copy from the Montana State Library data archive.
  Public Land Survey Sections from USGS 1:24,000 scale quadrangles, Upper Clark Fork Basin, Montana. The quadrangles have been joined into a single data set, but have not been edgematched, except to preserve polygon polygon topology. The USGS major and minor attribute codes have been replaced with the codes shown in this metadata record.
  See the quad_index shapefile for dates of the source quadrangles.
Purpose:
  Base map data, approximate location of features whose public land survey location description are known.
Time period of content:
  Beginning date: 1961
  Ending date: 1989
  Currentness reference: Publication Date
Status:
  Progress: Complete
  Maintenance and update frequency: Unknown
Access constraints: None
Use constraints:
  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, MT 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:
  Attributes were interpreted from the original DLG files by a computer program. The accuracy of this interpretation has not been extensively checked. Attribute accuracy of the original Digital Line Graph data is estimated by the USGS at 98.5 percent, and was tested by them as follows:
  - manual comparison of the source with hard copy plots.
  - symbolized display of the digital line graph on an interactive compter graphic system.
  - Selected attributes that could not be visually verified on plots or on screen, were interactively queried and verified on screen.
  In addition, U.S. Geological Survey (USGS) Production System (PROSYS) software tested the attributes against a master set of valid attributes for the category; it also checked for selected valid attribute combinations, and for valid attributes relative to topology and dimensionality. All attribute data conform to the attribute codes current as of the date of digitizing.
Logical consistency report: Polygon and arc-node topology exist.
Completeness report:
  For DLG data, Digital Revision Status = Not revised:
  Data completeness reflects the content of the source quadrangle. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints.
  For DLG data, Digital Revision Status = Limited Update:
  This file has undergone limited update digital revision. The file contains only (1) those features that are photoidentifiable on monoscopic source, supplemented with limited ancillary source, and (2) those features, present on the original source quadrangle, that can not be reliably photoidentified but that are not considered particularly prone to change.
  For DLG data, Digital Revision Status = Standard Update:
  This file has undergone standard update digital revision. The data completeness of this file meets National Mapping Division standards for feature content.
Horizontal Positional Accuracy Report:
  Approximate accuracy is 12 meters, assuming the source maps meet National Map Accuracy Standards (NMAS). NMAS horizontal accuracy requires that at least 90 percent of points tested are within 0.02 inches of the true position.
  The digital data are estimated to contain a horizontal positional error of less than or equal to 0.003 inches standard error in the two component directions relative to the source quadrangle. Comparison to the graphic source is used as control to assess digital positional accuracy.
  Cartographic offsets may be present on the graphic source, due to scale and legibility constraints. Digital map elements require edge alignment between data sets. Data along each quadrangle edge are tested against the data set for the adjacent quadrangle using PROSYS; tests check for positional accuracy between data sets within a 0.02 inches tolerance. Features with like dimensionality, and with or without like attribution, that are within the tolerance are adjusted by moving the feature equally in both data sets. Features outside the tolerance are not moved.
Lineage:
  Source information:
    Originator:
      National Mapping Division
      U.S. Geological Survey
    Publication date: 1961
    Title: 1:24,000-scale Digital Line Graphs
    Publication place: Reston, VA
    Publisher: U.S. Geological Survey
    Other citation details:
      See the quad_index shapefile for publication dates of the various quadrangles.
    Source scale denominator: 24000
    Source contribution: The data set is a re-processed copy of this source.
    Beginning date: 1961
    Ending date: 1989
  Process step:
    Interpret USGS attributes, project quadrangles to State Plane Coordinates., and join quadrangles into one data set.
  Process date: 02/05/1992
  Process step:
    Import additional quadrangles and append to the data that was imported in 1992.
  Process date: 04/14/1997

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Spatial Data Organization Information:

Point and vector object information:
  SDTS object type: Complete Chain
    SDTS object count: 8143
  SDTS object type: GT-polygon composed of chains
    SDTS object count: 2995
  SDTS object type: Area Point
    SDTS object count: 2994

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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: USPLS.PAT
Entity type definition: Polygon Attribute Table
  Attribute label: TOWN
    Attribute definition: Township number
    Range domain minimum: 0
    Range domain maximum: 14
  Attribute label: TPART
    Attribute definition: Partial Township Identifier
  Attribute label: N/S
    Attribute definition: Township North or South identifier

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

  Attribute label: RANGE
    Attribute definition: Range Number
    Range domain minimum: 0
    Range domain maximum: 20
  Attribute label: RPART
    Attribute definition: Partial Range Identifier
  Attribute label: E/W
    Attribute definition: Range East or West identifier

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

  Attribute label: SECTION
    Attribute definition: Section Number
    Range domain minimum: 0
    Range domain maximum: 36
  Attribute label: SPART
    Attribute definition: Partial Section identifier

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Distribution Information:

Distributor:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 1-406-444-5354
  E-Mail: geoinfo@mt.gov
Resource description: Offline Data
Distribution liability:
  DISCLAIMER: The Montana State Library Geographic Information Services 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.

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Metadata Reference Information:

Metadata date: 04/12/2013
Metadata review date: 05/26/2010
Metadata review date: 09/29/2004
Metadata review date: 04/15/1997
Metadata review date: 08/22/1997
Metadata contact:
  Gerry Daumiller
  Montana State Library
  P.O. Box 201800
  Helena, Montana 59620-1800
  Telephone: (406) 444-5355
  Fax: (406) 444-0581
  E-Mail: gdaumiller@mt.gov

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