Active mining operations, underground mines, 2023

Keywords: Mine operators
  • Coal operator (n=234)
  • Metal operator (n=83)
  • Nonmetal operator (n=37)
  • Stone operator (n=110)
  • Sand & Gravel operator (n=0)
  • N=464
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Notes: Mines where only contractors were working did not show employment and are not displayed. Data Source: MSHA
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Content source: National Institute for Occupational Safety and Health, Mining Program