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Prospect- and mine-related features on USGS topographic maps

Symbols indicating mining-related features digitized from historical USGS topographic maps in the western part of the conterminous US. Includes prospect pits, mine shafts and adits, quarries, open-pit mines, tailings piles and ponds, gravel and borrow pits, and other features.


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Show in your GIS using OGC web services: (WMS, version 1.3.0) (WFS, version 1.1.0)

Download compressed KML or view in Google Earth:

State KML Size
Arkansas usmin-AR.kmz 2.1M bytes
Arizona usmin-AZ.kmz 2.5M bytes
California usmin-CA.kmz 7.6M bytes
Colorado usmin-CO.kmz 2.4M bytes
Iowa usmin-IA.kmz 1.0M bytes
Idaho usmin-ID.kmz 1.3M bytes
Kansas usmin-KS.kmz 2.1M bytes
Louisiana usmin-LA.kmz 1.1M bytes
Minnesota usmin-MN.kmz 4.1M bytes
Missouri usmin-MO.kmz 3.0M bytes
Montana usmin-MT.kmz 2.0M bytes
North Dakota usmin-ND.kmz 759.9k bytes
Nebraska usmin-NE.kmz 482.2k bytes
New Mexico usmin-NM.kmz 2.1M bytes
Nevada usmin-NV.kmz 4.7M bytes
Oklahoma usmin-OK.kmz 1.5M bytes
Oregon usmin-OR.kmz 1.7M bytes
South Dakota usmin-SD.kmz 933.2k bytes
Texas usmin-TX.kmz 7.2M bytes
Utah usmin-UT.kmz 1.6M bytes
Washington usmin-WA.kmz 1.4M bytes
Wyoming usmin-WY.kmz 1.8M bytes


Get the entire data set: (File geodatabase 37M bytes) (Shapefile 60M bytes)

Download zipped shapefiles by state:

State Shapefile Size
Arkansas 2.0M bytes
Arizona 2.8M bytes
California 7.8M bytes
Colorado 2.6M bytes
Iowa 1.0M bytes
Idaho 1.4M bytes
Kansas 2.0M bytes
Louisiana 1.0M bytes
Minnesota 3.9M bytes
Missouri 3.0M bytes
Montana 2.1M bytes
North Dakota 761.0k bytes
Nebraska 463.7k bytes
New Mexico 2.1M bytes
Nevada 5.9M bytes
Oklahoma 1.4M bytes
Oregon 1.7M bytes
South Dakota 917.8k bytes
Texas 7.2M bytes
Utah 1.7M bytes
Washington 1.4M bytes
Wyoming 1.7M bytes



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