You searched for: Subject Aggregates (Building materials) Remove constraint Subject: Aggregates (Building materials) Institution Stanford Remove constraint Institution: Stanford Place Massachusetts Remove constraint Place: Massachusetts Place Pennsylvania Remove constraint Place: Pennsylvania 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.