Search U.S. government technical reports digitized or harvested by TRAIL.
Chromite deposits :Sweetwater, Castro, Trinidad, New London, and Hilltop mines San Luis Obispo County, Calif.
Methods and operations at the Yerington Copper Mine and Plant of the Anaconda Co., Weed Heights, Nev.
A reconnaissance of asbestos deposits in the serpentine belt of Northern California
Mining and processing silica sands at Overton, Nev., by Simplot Silica Products, Inc.