Gilluly, James, 1945, Emplacement of the Uncle Sam porphyry, Tombstone district, Arizona: American Journal of Science, v. 243, no. 12, p. 643-666.
American Journal of Science, v. 243, no. 12, p. 643-666.
Mineral District, Granitoid, Igneous Petrology, Silver, Thrust Faulting, Uncle Sam Tuff(Uncle Sam Porphyry) - Cretaceous, Bronco Volcanics,