Montana County Boundaries

Data format: Personal GeoDatabase Feature Class

File or table name: County

Coordinate system: State Plane Coordinate System 1983

Theme keywords: boundaries, county, county boundary, county lines, Montana county boundary, Montana counties, counties, governmental units

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

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Originators: Montana Base Map Service Center, Department of Administration, Information Technology Services Division


Title:
Montana County Boundaries
*File or table name: County


Publication date: 10/5/09
*Geospatial data presentation form: vector digital data


Publication information:
Publication place: Helena, Montana
Publisher: Montana Base Map Service Center, Department of Administration, Information Technology Services Division

Online linkage: http://giscoordination.mt.gov/data.asp


Description:
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

Purpose:
County boundaries coincident with GCDB and Cadastral parcel data.

*Language of dataset: en


Time period of content:
Time period information:
Single date/time:
Calendar date: 10/05/09

Currentness reference:
publication date

Status:
Progress: Complete
Maintenance and update frequency: As needed

Spatial domain:
Bounding coordinates:
*West bounding coordinate: -116.178571
*East bounding coordinate: -103.611177
*North bounding coordinate: 49.180871
*South bounding coordinate: 44.237720

Local bounding coordinates:
*Left bounding coordinate: 111848.615781
*Right bounding coordinate: 1030194.184219
*Top bounding coordinate: 547983.676250
*Bottom bounding coordinate: 17695.160000

Keywords:
Theme:
Theme keywords: boundaries
Theme keyword thesaurus: ISO 19115 Topic Category

Theme:
Theme keywords: county, county boundary, county lines, Montana county boundary, Montana counties, counties, governmental units

Place:
Place keywords: Montana

Access constraints: None
Use constraints:
County data is best used in conjunction with the GCDB, or other data based on GCDB.

The Base Map Service Center (BMSC) provides this product/service for informational purposes only.  The BMSC 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 BMSC provides these data in good faith and in no event, shall be liable for any incorrect results or analysis, any lost profits and special, indirect or consequential damages to any party, arising out of or in connection with the use or the inability to use the data or the services provided.  The BMSC makes these data and services available as a convenience to the public, and for no other purpose.  The BMSC reserves the right to change or revise published data and/or services at any time.

Point of contact:
Contact information:
Contact organization primary:
Contact person: Erin Geraghty
Contact organization: Montana Base Map Service Center, Department of Administration, Information Technology Services Division
Contact position: Governmental Units Framework Data Coordinator


Contact address:
Address type: mailing address
Address:
910 Helena Ave
City: Helena
State or province: Montana
Postal code: 59620
Country: United States

Contact voice telephone: 406-444-1550
Contact facsimile telephone: 406-444-1255


Contact electronic mail address: egeraghty@mt.gov


Hours of service: 8-5



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

*Native dataset format: Personal GeoDatabase Feature Class
*Native data set environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000


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Data Quality Information:


Completeness report:
Complete as of 10/05/09

Positional accuracy:
Horizontal positional accuracy:
Horizontal positional accuracy report:
Varies on GCDB accuracy

Lineage:
Source information:
Source citation:
Citation information:
Originators: U.S. Bureau of Land Management


Title:
Geographic Coordinate Database


Publication information:
Publication place: Billings, MT
Publisher: U.S. Bureau of Land Management, Montana/Dakotas Cadastral Survey

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:
Source citation:
Citation information:
Originators: U.S. Geological Survey


Title:
1:24,000 scale Digital Raster Graphics


Publication information:
Publication place: Helena, MT
Publisher: Montana State Library

Online linkage: http://nris.state.mt.us/nsdi/drgpages/tifstate.html


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:
Process description:
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


Process step:
Process description:
Dataset copied.

Source used citation abbreviation:
\\DOAITSDGIS-010\C$\mtdata\boundary\MTCounties.mdb


Process step:
Process description:
Metadata imported.

Process date: 20091112
Process time: 16424100


Source used citation abbreviation:
Q:\Erin\Governmental Units\Counties\Counties20091112.xml


Process step:
Process description:
Metadata imported.

Process date: 20091113
Process time: 10021300


Source used citation abbreviation:
Q:\Erin\Governmental Units\Counties\Counties20091112.xml


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Spatial Data Organization Information:


*Direct spatial reference method: Vector


Point and vector object information:
SDTS terms description:
*Name: County
*SDTS point and vector object type: G-polygon
*Point and vector object count: 57

ESRI terms description:
*Name: County
*ESRI feature type: Simple
*ESRI feature geometry: Polygon
*ESRI topology: FALSE
*ESRI feature count: 57
*Spatial index: TRUE
*Linear referencing: FALSE


*XY rank: 1
*Z rank: 1
*Topology weight: 5.000000
*Events on validation: FALSE
Participates in topology rules:
*Rule identifier: 1
Participates in topology rules:
*Rule identifier: 2
Participates in topology rules:
*Rule identifier: 6
Participates in topology rules:
*Rule identifier: 7


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Spatial Reference Information:


Horizontal coordinate system definition:
Coordinate system name:
*Projected coordinate system name: NAD_1983_StatePlane_Montana_FIPS_2500
*Geographic coordinate system name: GCS_North_American_1983

Planar:
Grid coordinate system:
*Grid coordinate system name: State Plane Coordinate System 1983
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 coordinate information:
*Planar coordinate encoding method: coordinate pair
Coordinate representation:
*Abscissa resolution: 0.000156
*Ordinate resolution: 0.000156
*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

Vertical coordinate system definition:
Altitude system definition:
*Altitude resolution: 0.000003
*Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

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Entity and Attribute Information:


Detailed description:
*Name: County


Entity type:
*Entity type label: County
*Entity type type: Feature Class
*Entity type count: 57
Entity type definition:
Counties of Montana

Attribute:
Attribute label: OBJECTID
*Attribute alias: OBJECTID
Attribute definition:
Internal feature number.
Attribute definition source:
ESRI

*Attribute type: OID
*Attribute width: 4
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
Unrepresentable domain:
Sequential unique whole numbers that are automatically generated.


Attribute:
Attribute label: SHAPE
*Attribute alias: SHAPE
Attribute definition:
Feature geometry.
Attribute definition source:
ESRI

*Attribute type: Geometry
*Attribute width: 0
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
Unrepresentable domain:
Coordinates defining the features.


Attribute:
Attribute label: NAME
*Attribute alias: NAME
Attribute definition:
Name of County
*Attribute definition source:
ESRI

*Attribute type: String
*Attribute width: 32
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
*Unrepresentable domain:
Positive real numbers that are automatically generated.


Attribute:
Attribute label: SHAPE_Length
*Attribute alias: SHAPE_Length
Attribute definition:
Perimeter of polygon in meters.
*Attribute definition source:
ESRI

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
*Unrepresentable domain:
Positive real numbers that are automatically generated.


Attribute:
Attribute label: SHAPE_Area
*Attribute alias: SHAPE_Area
Attribute definition:
Area of polygon in square meters.
*Attribute definition source:
ESRI

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
*Unrepresentable domain:
Positive real numbers that are automatically generated.


Attribute:
Attribute label: NAMEABBR
*Attribute alias: NAMEABBR
Attribute definition:
Two-letter abbreviation of county name

*Attribute type: String
*Attribute width: 2
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: SQMILES
*Attribute alias: SQMILES
Attribute definition:
Area of county in square miles

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: FIPS
*Attribute alias: FIPS
Attribute definition:
Federal Information Processing Standard county code

*Attribute type: SmallInteger
*Attribute width: 2
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: ACRES
*Attribute alias: ACRES
Attribute definition:
Area of county in acres

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: CountyPrefix
*Attribute alias: CountyPrefix


*Attribute type: SmallInteger
*Attribute width: 2
*Attribute precision: 0
*Attribute scale: 0


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Distribution Information:


Distributor:
Contact information:
Contact organization primary:
Contact person: Erin Geraghty
Contact organization: Montana Base Map Service Center, Department of Administration, Information Technology Services Division
Contact position: Governmental Units Framework Data Coordinator


Contact address:
Address type: mailing address
Address:
P.O. Box 200113
City: Helena
State or province: MT
Postal code: 59620-0113

Contact voice telephone: 406-444-1550
Contact facsimile telephone: 406-444-1255


Contact electronic mail address: egeraghty@mt.gov


Hours of service: 8-5



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:
Digital transfer information:
Format name: ESRI Personal Geodatabase

Digital transfer option:
Online option:
Computer contact information:
Network address:
Network resource name: ftp://gis.doa.state.mt.us/download/cadastral/mtcounties.mdb

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Metadata Reference Information:


*Metadata date: 20091113


*Language of metadata: en


Metadata contact:
Contact information:
Contact organization primary:
Contact person: Erin Geraghty
Contact organization: Montana Base Map Service Center, Department of Administration, Information Technology Services Division
Contact position: Governmental Units Framework Data Coordinator


Contact address:
Address type: mailing address
Address:
PO Box 200113
City: Helena
State or province: MT
Postal code: 59620-0113

Contact voice telephone: (406) 444-1550
Contact facsimile telephone: 406-444-1255


Contact electronic mail address: egeraghty@mt.gov


Hours of service: 8-5



*Metadata standard name: FGDC Content Standards for Digital Geospatial Metadata
*Metadata standard version: FGDC-STD-001-1998
*Metadata time convention: local time


Metadata extensions:
Online linkage: http://www.esri.com/metadata/esriprof80.html
Profile name: ESRI Metadata Profile

Metadata extensions:
Online linkage: http://www.esri.com/metadata/esriprof80.html
Profile name: ESRI Metadata Profile

Metadata extensions:
*Online linkage: http://www.esri.com/metadata/esriprof80.html
*Profile name: ESRI Metadata Profile

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