Search U.S. government technical reports digitized or harvested by TRAIL.
Exploration at the Cline mine, Cabarrus County, N.C.
Blast-hole drilling with diamond drills at the Tennessee Copper Co. mines, Ducktown, Tenn.
Investigation of the Andersonville bauxite district, Sumter, Macon, and Schley counties, Ga.
Investigation of the Springvale bauxite district, Randolph County, Ga.
Investigation of the K.T. Dome zinc-lead mine Owen and Henry Counties, Kentucky
Investigation of the Irwinton bauxite district, Wilkinson County, Ga.
Cost accounting and control at Calumet Division, Calumet & Hecla, Inc., Calumet, Mich.
Sand and gravel operations and costs, Construction Aggregates Corp., Ferrysburg, Mich.