Stone Operator Mining Facts - 2005 - Mining Operations
Description:In 2005, a total of 4,490 stone mining operations reported employment to the Mine Safety and Health Administration (MSHA). Stone mines comprised 30.6% of all mining operations. • Mines producing the primary commodity of limestone (crushed and broken) comprised the largest number of operations (n=2,039; 45.4%). • Stone mining operations were located in all states and territories except Delaware and North Dakota. • Of all states, Pennsylvania had the most stone mines (n=379; 8.4%).
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