| Author: | Wiebelt, Frank J. |
|---|---|
| Additional Authors: | Sanborn, W. C., Trengove, R. R. |
| Year: | 1951 |
| Document Type: | N/A |
| SUDOC: | I 28.23:4760 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | R. I. 4760 |
| Subjects: | Copper mines and mining -- California -- El Dorado County. |
| Copper mines and mining -- California -- Amador County. | |
| Copper mines and mining -- California -- Calaveras County. | |
| Copper mines and mining -- California -- Mariposa County. | |
| Zinc mines and mining -- California -- El Dorado County. | |
| Zinc mines and mining -- California -- Amador County. | |
| Zinc mines and mining -- California -- Calaveras County. | |
| Zinc mines and mining -- California -- Mariposa County. | |
| Mine examination -- California -- El Dorado County. | |
| Mine examination -- California -- Amador County. | |
| Mine examination -- California -- Calaveras County. | |
| Mine examination -- California -- Mariposa County. | |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc38555/ |