- Blue Eagle and Exposed Reef group
| (n.d.) ADMMR Mines Database, Arizona Geological Survey. Ref.: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 57 (Table 4) Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 258 |