Number of active mines by sector, 2017

Keywords: Mine operators
Sand & gravelStoneCoalNonmetalMetal01000200030004000500060007000Number of Mines6,295 (48.13 %)4,358 (33.32 %)1,216 (9.30 %)915 (7.00 %)296 (2.26 %)
Sector Number of Mines
Sand & gravel 6,295
Stone 4,358
Coal 1,216
Nonmetal 915
Metal 296
Note: Active mines are those mines that reported any employee hours during the year. Data Source: MSHA
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Content source: National Institute for Occupational Safety and Health, Mining Program