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2003. Geological Survey (U.S.). This point shapefile represents locations of agricultural minerals operations in the United States. The data represent commodities covered by the M... National Atlas of the United States.
2000. California. Department of Fish and Game. Marine Resources Region and Geological Survey (U.S.). This point shapefile contains information on names, locations, and types of geographic features in California. The layer source is a custom state e... California. Department of Fish and Game. Marine Resources Region.