You searched for: Subject Geoscientific Information Remove constraint Subject: Geoscientific Information Subject Economy Remove constraint Subject: Economy Place Nebraska Remove constraint Place: Nebraska Place Iowa Remove constraint Place: Iowa Place Arkansas Remove constraint Place: Arkansas Place Georgia Remove constraint Place: Georgia 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.