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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
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This map layer includes crushed stone operations in the United States. These data were obtained from information reported voluntarily to the USGS by the aggregate producing companies. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2002 with production greater than 50,000 tons, which are non-government, non-portable, and surveyed by the MIT. This is a replacement for the January 2001 map layer.
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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/>
Tags: aluminum, asbestos, ball clay, barite, bentonite, All tags...


    map background search result map search result map Active Mines and Mineral Processing Plants in the United States in 2003 Active Mines and Mineral Processing Plants in the United States in 2003 Crushed Stone Operations in the United States Crushed Stone Operations in the United States Active Mines and Mineral Processing Plants in the United States in 2003 Active Mines and Mineral Processing Plants in the United States in 2003