Jasper from Carbon County, Wyoming, USA
USA | |
| Personal Collection of Matthew Neuzil |
| Spencer, A. C. (1904) The copper deposits of the Encampment district, Wyoming. USGS Professional Paper 25 |
Spencer, A. C. (1904) The copper deposits of the Encampment district, Wyoming. USGS Professional Paper 25 | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |