Search U.S. government technical reports digitized or harvested by TRAIL.
Concentration of oxide manganese ores from the Havasu Lake District, California and Arizona
Concentration of manganese ore from southeastern Juab County, Utah
Concentration of oxide manganese ores from the Artillery Peak deposit, Mohave County, Ariz.
Concentration of manganese ores from Piute and Kane counties, southern Utah
Concentration of oxide manganese ores from northeastern Utah, Daggett Chief and Gray Hawk properties