NIOSH Mine and Mine Worker Charts

The following graphs, maps, and tables present 1983-2021 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.


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