You searched for: Access Public Remove constraint Access: Public Subject Aggregates (Building materials) Remove constraint Subject: Aggregates (Building materials) Place Connecticut Remove constraint Place: Connecticut Place Colorado Remove constraint Place: Colorado 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.