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1. Mining claim activity on federal land for the period 1976 through 2003

Causey, J. Douglas. U.S. Geological Survey ;.

2. Mining claim activity on federal land in the United States

Causey, J. Douglas. The Public Land spatial data sets (shapefile) contains Public Land Survey section polygons that had mining claims recorded in the U.S. Bureau of La... U.S. Geological Survey,.