Metadata for Montana County Boundaries, 2009 Metadata for Montana County Boundaries, 2009

Download full XML Metadata

Identification Information:

Citation:

Originator: Montana State Library

Publication date: 10/05/2009

Title: Montana County Boundaries, 2009

Publication place: Helena, Montana
Publisher: Montana State Library

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:

Database of Montana Counties 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. Adjusted to the newest GCDB: 10/05/09

Time period of content:

Calendar date: 10/05/2009
Currentness reference: publication date

Status:

Progress: Complete
Maintenance and update frequency: As needed

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:

Adminsitrative Boundaries Framework Data Coordinator
Montana State Library
P.O. Box 201800
Helena, Montana 59620
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
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
Source scale denominator: 24000
Type of source media: online
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: 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: 45.00
Standard parallel: 49.00
Longitude of central meridian: -109.50
Latitude of projection origin: 44.25
False easting: 600000.00
False northing: 0.00

Planar distance units: meters

Geodetic model:

Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.00
Denominator of flattening ratio: 298.257222

Entity and Attribute Information:

Entity type label: County

Attribute label: OBJECTID

Attribute definition: Internal feature number.

Attribute label: SHAPE

Attribute definition: Feature geometry.

Attribute label: NAME

Attribute definition: Name of County

Attribute label: NAMEABBR

Attribute definition: Two-letter abbreviation of county name

Attribute label: SQMILES

Attribute definition: Area of county in square miles

Attribute label: FIPS

Attribute definition: Federal Information Processing Standard county code

Attribute label: ACRES

Attribute definition: Area of county in acres

Attribute label: SHAPE_Length

Attribute definition: Perimeter of polygon in meters.

Attribute label: SHAPE_Area

Attribute definition: Area of polygon in square meters.

Attribute label: CountyPrefix

Attribute definition: County license plate code number

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: 08/01/2016

Metadata contact:

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