You searched for: Subject Minerals Remove constraint Subject: Minerals Subject Mines and mineral resources Remove constraint Subject: Mines and mineral resources Place Massachusetts Remove constraint Place: Massachusetts Place United States Remove constraint Place: United States Place Connecticut Remove constraint Place: Connecticut Place Colorado Remove constraint Place: Colorado Format Shapefile Remove constraint Format: Shapefile Year 2001 Remove constraint Year: 2001
2001. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents locations of crushed stone operations in the United States. These data were obtained from information reported volu... National Atlas of the United States.