Little Joe Mine
The Little Joe and Hoss Opal Mines are located in the Calico Mountains.
Resources
- Stephen B. Castor, Gregory C. Ferdock, "Minerals of Nevada," Issue 31, p. 76, 2004. Discovered by Ray Duffield in the 1960's.
The Little Joe and Hoss Opal Mines are located in the Calico Mountains.