- Tombstone Mining District
| Force, E. R. (1996) The Bisbee Group of the Tombstone Hills, southeastern Arizona Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 179, 251, 414 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 95, 97, 99, 103. Butler, B.S., et al (1938b), Geology and ore deposits of the Tombstone district, AZ, AZ Bur. Mines Bull. 143 stratigraphy, structure, metamorphism, and mineralization USGS Bulletin: 2042-B |