Stone Operator Mining Facts - 2007 - Mining Operations; Stone Operator Mining Facts - 2007
Description:In 2007, a total of 4,639 stone mining operations reported employment to the Mine Safety and Health Administration (MSHA).1 Stone mines comprised 31.2% of all mining operations. • Mines producing the primary commodity of limestone (crushed and broken) comprised the largest number of operations (n=2,051; 44.2%). • Stone mining operations were located in all states and territories except Delaware and North Dakota. • Pennsylvania had the most stone mines (n=373; 8.0%), followed by Texas (n=352; 7.6%).
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