You searched for: Subject Aggregates (Building materials) Remove constraint Subject: Aggregates (Building materials) Place Massachusetts Remove constraint Place: Massachusetts Place Arkansas Remove constraint Place: Arkansas Place Arizona Remove constraint Place: Arizona 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.