Montana State Library 20160930 Helena, Montana Montana State Library https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/AdministrativeBoundaries/Historic/ http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={B3682ED8-1D68-41F8-BAE6-14149C527EE4} These data are from the Montana County Boundary geodatabase that was available on the Montana State Library web site at the end of 2016. 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 CadNSDI is adjusted by the Montana State Library or the GCDB is adjusted by the BLM and those data are imported into the Cadastral Data Model. County boundaries coincident with GCDB and Cadastral parcel data. 20160930 publication date Complete As needed -116.178571 -103.611177 49.180871 44.237720 None county Montana counties governmental units counties Montana county boundary county lines county boundary Montana Spatial Data Infrastructure MSDI ISO 19115 Topic Category boundaries None Montana None County data is best used in conjunction with the GCDB, or other data based on GCDB. 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. Montana State Library physical

1201 11th Ave

Helena MT 59601 US 406-444-1550 Montana Relay 711 406-444-0266 geoinfo@mt.gov US Bureau of Land Management, Geographic Coordinate Database, US Geological Survey 1:24,000 Digital Raster Graphics Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.5004 Complete as of 10/05/09 Varies on GCDB accuracy U.S. Geological Survey Helena, MT Montana State Library http://nris.state.mt.us/nsdi/drgpages/tifstate.html 24000 onLine 1:24,000 scale Digital Raster Graphics County lines that do not follow Public Land Survey lines were screen-digitized from these images. U.S. Bureau of Land Management Billings, MT U.S. Bureau of Land Management, Montana/Dakotas Cadastral Survey http://www.mt.blm.gov/cadastral/gcdb/index.html onLine Geographic Coordinate Database This is the source of all county lines that follow Public Land Survey lines. County boundaries were adjusted to the latest CadNSDI. Montana State Library Meghan Burns GIS Analyst mailing

PO Box 201800

Helena MT 59620 US 4064441550 mburns2@mt.gov 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. Discrepencies were researched when encountered, however this is not meant to represent a legal survey of Montana county boundaries unknown Vector GT-polygon composed of chains 56 NAD 1983 StatePlane Montana FIPS 2500 45.0 49.0 -109.5 44.25 600000.0 0.0 coordinate pair 0.00015625 0.00015625 meter D North American 1983 GRS 1980 6378137.0 298.257222101 County Counties of Montana OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. ESRI Coordinates defining the features. NAME Name of County ESRI Positive real numbers that are automatically generated. SHAPE_Length Perimeter of polygon in meters. ESRI Positive real numbers that are automatically generated. COUNTYNUMBER PKEY SHAPE_Area Area of polygon in square meters. ESRI Positive real numbers that are automatically generated. PERIMETER NAMEABBR Two-letter abbreviation of county name ALLFIPS SQMILES Area of county in square miles LAST_UPDATE SHAPE_Length_1 SHAPE_Area_1 FIPS Federal Information Processing Standard county code ACRES Area of county in acres Montana State Library physical

1201 11th Ave

Helena MT 59601 US 406-444-1550 Montana Relay 711 406-444-0266 geoinfo@mt.gov Downloadable Data 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. ESRI Personal Geodatabase https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/AdministrativeBoundaries/MontanaCounties.zip 20170203 Montana State Library physical

1201 11th Ave

Helena MT 59601 US 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time {3f0a9b80-2661-4f97-9689-e823ea2daa3a}