|
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. USGS Prof Paper 297F |
| Koschmann, Albert Herbert, Bergendahl, M.H. (1968) Principal gold-producing districts of the United States. Professional Paper 610. US Geological Survey doi:10.3133/pp610 |
| Roberts, Willard Lincoln, Rapp, George Jr. (1965) Mineralogy of the Black Hills. Bulletin 18. South Dakota School of Mines and Technology |
- Ruby Basin Mining District
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Rocks & Min.:60:111. |
| Rocks & Min.: 60: 111. |
| Roberts, Willard Lincoln, Rapp, George Jr. (1965) Mineralogy of the Black Hills. Bulletin 18. South Dakota School of Mines and Technology |