Nonmetal Operator Mining Facts - 2006 - Mining Operations; Nonmetal Operator Mining Facts - 2006
Description:In 2006, a total of 741 nonmetal mining operations reported employment to the Mine Safety and Health Administration (MSHA).1 These mines (e.g., potash, gypsum, salt) comprised 5.0% of all operations. • Mines producing common clay comprised 25.2% (n=187) of all nonmetal mining operations. • Nonmetal mining operations were located in all states and territories except Alaska, Delaware, Hawaii, Maine, New Hampshire, Rhode Island, Puerto Rico, and the Virgin Islands.
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