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Start Over Place Delaware Subject Sand and gravel mines and mining Bounding Box -180 -89.81531 180 89.456192

1. Sand and Gravel Operations in the United States

Datasets Stanford University Public content
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.