Colosseum-Morning Star-Roadside-Copperstone: Precious metal deposits of southern California and western Arizona, in Beatty, B., and Wilkinson, P.A.K., eds., Frontiers in geology and ore deposits of Arizona and the Southwest

Durning, W.P., and Hillemeyer, F.L., 1986, Colosseum-Morning Star-Roadside-Copperstone: Precious metal deposits of southern California and western Arizona, in Beatty, B., and Wilkinson, P.A.K., eds., Frontiers in geology and ore deposits of Arizona and the Southwest: Arizona Geological Society Digest, v. 16, p. 248-266.