Search U.S. government technical reports digitized or harvested by TRAIL.
Exploration for war minerals (through fiscal year 1942)
Ellington manganese deposit, Reynolds County, Mo.
The Three Kids manganese deposit Clark County, Nev. :exploration, mining, and processing
Shaft-sinking methods and costs at the T.L. Shaft, Eureka Corp., Eureka, Nev.
Exploration, development, and costs of the Stormy Day Tungsten Mine, Pershing County, Nev.
Open-pit operations at the Tripp Pit, Consolidated Coppermines Corp., Kimberly, Nevada