You searched for: Subject Mines and mineral resources Remove constraint Subject: Mines and mineral resources Institution Stanford Remove constraint Institution: Stanford Place United States Remove constraint Place: United States Place Arkansas Remove constraint Place: Arkansas Place Arizona Remove constraint Place: Arizona Place Colorado Remove constraint Place: Colorado Format Shapefile Remove constraint Format: Shapefile Year 2002 Remove constraint Year: 2002
2002. Geological Survey (U.S.) Minerals Information Team. This point shapefile includes sand and gravel operations in the United States. These data were obtained from information reported voluntarily to th... National Atlas of the United States.