Number of active mines by sector and year, 2021 - 2022
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Sector | 2021 | 2022 |
---|---|---|
Coal | 970 | 991 |
Metal | 270 | 280 |
Nonmetal | 858 | 859 |
Stone | 4,264 | 4,271 |
Sand & gravel | 6,205 | 6,162 |
Total | 12,567 | 12,563 |
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