Search U.S. government technical reports digitized or harvested by TRAIL.
List of permissible mine equipment approved during 1940
Permissible mine equipment approved during 1942
Permissible mine equipment approved during 1943
Some data about fire-fighting facilities at metal mines in the United States
Roof bolting in the United States
Falls of roof :the no. 1 killer in bituminous-coal mines
Permissible mine equipment approved during the calendar years 1953-54
Administration of the Federal Coal-Mine Safety Act, calendar year 1956
Administration of the Federal Coal-Mine Safety Act, calendar year 1957
Administration of the Federal Coal-Mine Safety Act, 1952-59
Safety organization and activities of award-winning companies in the coal-mining industry
Review of horizontal drilling technology for methane drainage from U.S. coalbeds
The Noise exposure of operators of mobile machines in U.S. surface coal mines, 1979
Site-specific and regional geologic considerations for coalbed gas drainage