Little Joe Mine
The Little Joe and Hoss Opal Mines are located in the Calico Hills and discovered by Ray Duffield in the 1960's[1]. The Royal Rainbow Opal Mine is located a few km to the north.
References
- ↑ Stephen B. Castor, Gregory C. Ferdock, "Minerals of Nevada," Issue 31, p. 76, 2004.
Remote Resources
- GNIS
- Citation: "Primary Series 30-Minute Highway Quads, Nevada Department of Transportation. 2-11/1986"