Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Exploration of the El Dorado copper mine, El Dorado County, Calif.

Survey of Tin in California

Investigation of the Hogan tin mine Kern County, Calif.

Investigation of Guadalupe mercury mine, Santa Clara County, Calif.

Investigation of the New Almaden mercury mine, Santa Clara County, Calif.

Published Year

• 1940-1949 (3)
• 1950-1959 (2)

Subject

• Mercury mines and mining--California--Santa Clara County (2)
• Copper mines and mining--California--El Dorado County (1)
• Tin deposits -- California. (1)
• Tin mines and mining -- California. (1)
• Tin mines and mining--California--Kern County (1)

Author

• Bedford, Robert H. (5) *
• Ricker, Spangler. (3)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010