- Tombstone Mining District
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 112 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 58 Butler, B.S., et al. (1938b), Geology and ore deposits of the Tombstone district, AZ, AZ Bur. Mines Bull. 143 |
San Diego Mine, Tombstone Extension Mines, Tombstone Mining District, Cochise County, Arizona, USA