Crushed Stone Operations in the United States

Jun 8, 2010
Description:
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.
Data Provided By:
Minerals Information Team,U.S. Geological Survey
Content date:
not specified
Citation:
Title: Crushed Stone Operations in the United States
Credits: Minerals Information Team,U.S. Geological Survey
Publication Date: 200506
Publisher: National Atlas of the United States
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U.S. Geological Survey
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None. Acknowledgment of the National Atlas of the United States of America would be appreciated in products derived from these data.
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Conservation Biology Institute

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.