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 oxide manganese ores from the Artillery Peak deposit, Mohave County, Ariz.
Concentration of fluorite ores from Arizona, California, Idaho, Montana, Nevada, and Wyoming
Concentration of manganese ores from Grand and Emery Counties, Utah