Search U.S. government technical reports digitized or harvested by TRAIL.
Accidents due to misuse of explosives
Suggested hoisting-signal code for metal-mine shafts
Suggested hoisting-signal code for slope coal mines and for shaft mines having only one level
Method of handling hydrogen sulfide gas in the Elk Basin oil field of Wyoming
Information on coal mining in Spain
Diesel equipment in underground mining
Yakobi Island nickel deposit, Sitka Mining District, Alaska
Burning refuse dumps at coal mines
Investigation of Nightingale tungsten deposit, Pershing County, Nev.