Metadata for Montana County Boundaries, 2003 Metadata for Montana County Boundaries, 2003

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Identification Information:

Citation:

Originator:

Montana Department of Administration
GIS Bureau

Publication date: 08/25/2003

Title: Montana County Boundaries, 2003

Publication place: Helena, Montana
Publisher: Montana Dept of Administration

Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/AdministrativeBoundaries/Historic/

Larger Work Citation:

Title: Montana County Boundaries
Online linkage: http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={B3682ED8-1D68-41F8-BAE6-14149C527EE4}

Abstract:

These data are Montana county polygons created to be coincident with the Montana Cadastral Parcel Boundaries. Where county boundaries are coincident with public land survey section lines, they were copied from the BLM's Geographic Coordinate Database (GCDB). If boundaries were not coincident with GCDB lines, they were digitized on screen from 1:24,000 scale Geological Survey Digital Raster Graphics (DRGs). County Boundaries will change as the GCDB is adjusted by the BLM and those data are imported into the Cadastral Data Model.

This data is the copy of the GCDB county data that were available on the Montana State Library web site from 2004 through 2011. The data were obsolete after the Cadastral data were adjusted in 2009.

Time period of content:

Calendar date: 08/25/2003
Currentness reference: publication date

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: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov

Data Quality Information:

Lineage:

Source information:

Originator: U.S. Bureau of Land Management
Title: Geographic Coordinate Database
Online linkage: http://www.mt.blm.gov/cadastral/gcdb/index.html
Type of source media: online
Source contribution:: This is the source of all county lines that follow Public Land Survey lines.

Source information:

Originator: U.S. Geological Survey
Title: 1:24,000 scale Digital Raster Graphics
Online linkage: http://nris.mt.gov/nsdi/drgpages/tifstate.html
Source scale denominator: 24000
Source contribution:: County lines that do not follow Public Land Survey lines were screen-digitized from these images.

Process step:

County boundaries when coincident with the PLSS were copied from origianl GCDB data downloaded from the Montana State BLM Office. Based on recent observations, this GCDB data varies somewhat from what is available at the Denver GCDB LSIS site and BLM needs to coordinate to ensure one standard version of GCDB. The boundaries that are not coincident with PLSSS, rivers and other topographic features, were on screen digitized from the USGS rastergraphics. Discrepencies were researched when encountered, howverer this is not meant to represent a legal survey of Montana county boundaries


Process date: 2002-2003

Spatial Reference Information:

Horizontal coordinate system definition:

Grid coordinate system name: State Plane Coordinate System

SPCS zone identifier: 2500

Lambert conformal conic:

Standard parallel: 45.000000
Standard parallel: 49.000000
Longitude of central meridian: -109.500000
Latitude of projection origin: 44.250000
False easting: 600000.000000
False northing: 0.000000

Planar distance units: meters

Geodetic model:

Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222

Entity and Attribute Information:

Entity type label: Counties2003

Entity type definition: Polygon feature class

Attribute label: FID

Attribute definition: Shapefile sequence number

Attribute label: Shape

Attribute definition: Feature geometry

Attribute label: OBJECTID

Attribute definition: database feature number

Attribute label: NAME

Attribute definition: Name of the county, in all capital letters.

Attribute label: SHAPE_Leng

Attribute definition: Length of the perimeter of county in meters

Attribute label: SHAPE_Area

Attribute definition: Area of the county in square meters

Attribute label: NAMEABBR

Attribute definition: Two-letter abbreviation for the county name.

Attribute label: SQMILES

Attribute definition: Area of the county in square miles.

Attribute label: FIPS

Attribute definition: Federal Information Processing Standard county ID code

Attribute label: ACRES

Attribute definition: Area of the county in acres

Entity type label: CountyLines2003

Entity type definition:

Polyline feature class giving the source of the county boundary lines

Attribute label: FID

Attribute definition: Shapefile sequence number

Attribute label: Shape

Attribute definition: Feature geometry

Attribute label: OBJECTID

Attribute definition: database feature number

Attribute label: SOURCE

Attribute definition: Source of the line

Attribute label: SHAPE_Leng

Attribute definition: Length of the line in meters

Distribution Information:

Distributor:

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

Resource description: Downloadable Data

Distribution liability:

Metadata Reference Information:

Metadata date: 11/12/2014

Metadata review date: 09/29/2004

Metadata review date: 10/31/2003

Metadata contact:

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