Number of active mines by sector, 2020
Keywords:
| Sector | Number of Mines |
|---|---|
| Sand & gravel | 6,251 |
| Stone | 4,281 |
| Coal | 1,009 |
| Nonmetal | 895 |
| Metal | 278 |
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