- La Plata Mining District (California Mining District)
| Saunders, J. A. (1986). Petrology, mineralogy, and geochemistry of representative gold telluride ores from Colorado (Doctoral dissertation, Colorado School of Mines). R & K Metals and Mining - Bob Ross - Part owner of the Bessie G |
Bessie G Mine, La Plata Mining District, La Plata County, Colorado, USA