NIOSH Mine and Mine Worker Charts

The following graphs, maps, and tables present 1983-2019 data for all mining in the U.S. by mining sector. Data source: Mine Safety and Health Administration (MSHA). See Statistical Methodology for further details. Additional Mining Facts for each sector are available from 2000 through 2015.

Mines
Employees
Fatalities
Injuries

The following charts and tables summarize all U.S. mining disasters from 1839 through present. Charts are provided from 1839 through the last complete calendar year. A mining disaster is defined as an incident with 5 or more fatalities.

Mining Disasters