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Start Over You searched for: Year 2002 Remove constraint Year: 2002 Subject Aggregates (Building materials) Remove constraint Subject: Aggregates (Building materials) Creator Geological Survey (U.S.) Minerals Information Team Remove constraint Creator: Geological Survey (U.S.) Minerals Information Team

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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.