Structure: | Schistosity Of Pinal Schist Generally Trends N40-60e. Schist Is Overlain By Scanlon Conglomerate About 100 Ft Thick. Unconformably Above Is A Tert Basalt Flow. S Of The Deposit Is A Mass Of Prec Quartz Porphyry. Prec Apache Group Is Exposed In The Region, But Is Missing Near The Mine, Veins Are Structurally Undisturbed Locally, Although There May Be A Fault Along Spring Creek |