You searched for: Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Subject Minerals Remove constraint Subject: Minerals Subject Geoscientific Information Remove constraint Subject: Geoscientific Information Place Massachusetts Remove constraint Place: Massachusetts 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.