Search U.S. government technical reports digitized or harvested by TRAIL.
Reconnaissance of Gold-Mining Districts in the Black Hills, South Dakota
Investigation of iron-ore reserves of Iron County, Utah :(supplement to R.I. 4076)
Investigation of the Thompson magnesium well, Grand County, Utah
Mining practices at the Harrington-Hickory mine Beaver County, Utah
Investigation of Sublette Ridge Vanadium Deposit, Lincoln County, Wyoming
Investigations of Salt River Vanadium Deposits, Lincoln County, Wyoming