Metadata for Montana County Boundaries, 2017 Metadata for Montana County Boundaries, 2017

Download full XML Metadata

Identification Information:

Citation:

Originator: Montana State Library

Publication date: 12/06/2017

Title: Montana County Boundaries, 2017

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:

These data are from the Montana County Boundary geodatabase that was available on the Montana State Library web site at the end of 2017. 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.

Purpose:

County boundaries coincident with GCDB and Cadastral parcel data.

Time period of content:

Calendar date: 12/06/2017
Currentness reference: publication date

Status:

Progress: Complete
Maintenance and update frequency: As needed

Access constraints: None

Use constraints:

County data is best used in conjunction with the GCDB, or other data based on GCDB. 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.

Point of contact:

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 set credit:

US Bureau of Land Management, Geographic Coordinate Database, US Geological Survey 1:24,000 Digital Raster Graphics

Data Quality Information:

Completeness report: Complete as of 12/06/17

Horizontal Positional Accuracy Report: Varies on GCDB accuracy

Lineage:

Source information:

Originator: U.S. Geological Survey
Title: 1:24,000 scale Digital Raster Graphics
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/AdministrativeBoundaries/
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.

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.

Process step:

County boundaries when coincident with the PLSS were copied from original 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 PLSS, rivers and other topographic features, were on screen digitized from the USGS raster graphics. Discrepancies were researched when encountered, however this is not meant to represent a legal survey of Montana county boundaries


Process date: unknown

Process step:

Adjusted county boundaries to the July 2015 CadNSDI Montana (PLSS)


Process date: 09/09/2015

Process step:

Adjusted county boundaries to the March 2016 CadNSDI Montana (PLSS)


Process date: 09/30/2016

Process step:

Adjusted county boundaries to the October 2017 CadNSDI Montana (PLSS) and renamed Lewis and Clark


Process date: 10/16/2017

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: GT-polygon composed of chains

SDTS object count: 56

Spatial Reference Information:

Horizontal coordinate system definition:

Map projection:

Map projection name: NAD 1983 StatePlane Montana FIPS 2500
Lambert conformal conic:

Planar distance units: meter

Geodetic model:

Horizontal datum name: D North American 1983
Ellipsoid name: GRS 1980
Semi-major axis: 6378137.0
Denominator of flattening ratio: 298.257222101

Entity and Attribute Information:

Entity type label: AdministrativeBoundaries.DBO.BNDY_County

Entity type definition: Counties of Montana

Attribute label: NAME

Attribute definition: Name of County

Attribute label: OBJECTID

Attribute definition: Internal feature number.
Attribute domain:: Sequential unique whole numbers that are automatically generated.

Attribute label: SHAPE

Attribute definition: Feature geometry.
Attribute domain: Coordinates defining the features.

Attribute label: COUNTYNUMBER

Attribute label: PKEY

Attribute label: ACRES

Attribute definition: Area of county in acres

Attribute label: PERIMETER

Attribute label: SQMILES

Attribute definition: Area of county in square miles

Attribute label: ALLFIPS

Attribute label: FIPS

Attribute definition: Federal Information Processing Standard county code

Attribute label: ORIG_FID

Attribute label: LAST_UPDATE

Attribute label: GLOBALID

Attribute label: NAMELABEL

Attribute label: NAMEABBR

Attribute definition: Two-letter abbreviation of county name

Attribute label: Shape.STArea()

Attribute label: Shape.STLength()

Distribution Information:

Distributor:

Montana State Library
P.O. Box 201800
Helena, MT 59620-0113
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:

This is not a survey product. No liability is assumed by the State of Montana for the use of this product

Standard order process:

Digital form:

Metadata Reference Information:

Metadata date: 12/26/2017

Metadata contact:

Adminsitrative Boundaries Framework Data Coordinator
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