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Author
Geological Survey (U.S.) Minerals Information Team
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Subject
Sand and gravel mines and mining
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Place
New Mexico
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Year
2002
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1. Sand and Gravel Operations in the United States
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.