You searched for: Subject Geoscientific Information Remove constraint Subject: Geoscientific Information 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 Delaware Remove constraint Place: Delaware Place Florida Remove constraint Place: Florida Place Connecticut Remove constraint Place: Connecticut 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.