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This data set includes mineral and metal operations in the United States. The data represent commodities monitored by the National Minerals Information Center of the USGS, and the operations included are those considered active in 2003 and surveyed by the MIT.
Additional mineral and metal operations information can be obtained from
the U.S. Geological Survey National Minerals Information Center web
page at:
<http://minerals.usgs.gov/minerals/>
None. Acknowledgment of the National Minerals Information Center, U.S. Geological Survey, Department of the Interior, government of the United States of America would be appreciated in products derived from these data.
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The Conservation Biology Institute (CBI) provides scientific expertise to support the conservation and recovery of biological diversity in its natural state through applied research, education, planning, and community service.