Metadata for Montana 1:250,000 scale Land Use from USGS, 1970-1985 Metadata for Montana 1:250,000 scale Land Use from USGS, 1970-1985

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Identification Information:

Citation:

Originator: Montana State Library
Publication date: 02/01/1992
Title: Montana 1:250,000 scale Land Use from USGS, 1970-1985
Other citation details:: The former name of the data set on the NRIS web site was "lu25"
Online linkage: https://ftpgeoinfo.msl.mt.gov/data/Spatial/NonMSDI/Shapefiles/LandUse1985.zip

Browse graphic file name: https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Thumbnails/19950925_582_thumb.jpg
Browse graphic file description: Thumbnail of Montana Landcover map

Browse graphic file name: https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Individual/19950925_582_1995_MTLandUse.gif
Browse graphic file description: Montana Landcover map

Abstract:

Montana 1:250,000 scale Land Use/Land Cover. Derived from USGS GIRAS files, some provided by the U.S. Bureau of Mines, others downloaded from the USGS World Wide Web server.

The library tiles have the following source dates: Sandpoint 1981, Kalispell 1982, CutBank 1984, Shelby 1980, Havre 1982, Glasgow 1982, WolfPoint 1980, Spokane 1975, Wallace 1980, Choteau 1984, GreatFalls 1984, Lewistown 1985, Jordan 1982, Glendive 1974, Hamilton 1982, Butte 1984, WhiteSulphur 1972, Roundup 1982, Forsyth 1980, Ashton 1980, Miles City 1975, Elk City 1982, Dillon 1984, Bozeman 1972, Billings 1976, Hardin 1970, Ekalaka 1976, Dubois 1980, Cody, 1980.

GIRAS is the U.S. Geological Survey's Geographic Information Retrieval and Analysis System. The U.S.G.S. digitized the data from 1:250,000 scale maps, which it created through field surveys and aerial photo interpretation. The minimum size of regions to be classified was 10 acres in urban areas, 40 acres in rural areas, linear manmade features at least 660 feet wide, and linear natural features at least 1320 feet wide.

Time period of content:

Beginning date: 1970
Ending date: 1985
Currentness reference: Publication Date

Status:

Progress: Complete

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, Montana 59620-1800
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov

Data Quality Information:

Logical consistency report:

The adjacent 1 x 0.5 degree map tiles tiles have not been edgematched, and they may overlap or have gaps between them.

Horizontal Positional Accuracy Report:

Approximate horizontal accuracy is 130 meters, assuming source data meets National Map Accuracy Standards.

Lineage:

Source information:

Originator: U.S. Geological Survey
Publication date: 1985
Title: Geographic Information Analysis and Retrieval files, LU/LC
Other citation details: see http://edcwww.cr.usgs.gov/glis/hyper/guide/1_250_lulc
Source scale denominator: 250000
Source contribution: This data set is a copy of this source.
Beginning date: 1970
Ending date: 1985

Process step:

Convert GIRAS files to Arc/Info format, transform data to UTM coordinates, and project to Albers.


Process date: 02/01/1992

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: G-polygon

SDTS object count: 53452

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

Entity and Attribute Information:

Entity type label: LandUse1985.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: CODE

Attribute definition: Land Use/Land Cover code

Attribute label: NAME

Attribute definition: Land Use/Land Cover description

Distribution Information:

Distributor:

Montana State Library
PO Box 201800
Helena, MT 59620-1800
Telephone: 406-444-5354
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov
E-Mail: geoinfo@mt.gov

Resource description: Downloadable Data

Distribution liability:

Standard order process:

Digital form:

Metadata Reference Information:

Metadata date: 01/16/2014

Metadata review date: 04/17/2013

Metadata review date: 01/20/2012

Metadata review date: 12/22/2005

Metadata review date: 09/29/2004

Metadata review date: 09/28/1995

Metadata review date: 05/07/1996

Metadata contact:

Montana State Library
PO Box 201800
Helena, Montana 59620-1800
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov