Bitter Spring prospect (Bitter Springs claim), Mount Turnbull, Stanley District, Turnbull Mts, San Carlos Indian Reservation, Graham Co., Arizona, USA
Latitude: 33°5'16"N
Longitude: 110°18'42"W
An underground Au-Ag-Cu-Fe-U-Fluorspar prospect located in sec. 17, T4S, R20E, on the NW slopes of Mount Turnbull, 5.5 miles NE from Copper Reef Mountain, at an altitude of 4,650 feet. Located near the upper end of Bitter Spring Trap. Discovered in 1920 by Mr. F.C. Crockett.
Mineralization is an irregular ore body in a replacement deposit 45.72 meters long, 3.05 meters wide, hosted in limestone. Ore control was a contact between limestone and rhyolite. A quartz-pyrite-magnetite zone of mineralization 5 to 10 feet wide. Magnetite float is present for a distance of 100 to 150 feet along strike.
Country rocks are largely rhyolitic and andesitic volcanic rocks but at 2 places there are small outcrops of limestone of indeterminate age. Each is weakly mineralized.
Workings include 2 adits and a shallow shaft. CAVED AND FLOODED The shaft and adit were caved and flooded (1956).
References
U.S. Atomic Energy Commission Preliminary Reconnaissance Report 172-481 (1954): 382.
Bromfield, Calvin S. & Shride (1956), Mineral resources of the San Carlos Indian Reservation, Arizona, USGS Bull. 1027-N: 630, 634-635.
Harrer, C.M. (1964), Reconnaissance of Iron Resources in Arizona, US Bureau of Mines Information Circular 8236: 57-58.
USGS San Carlos Reservoir Quadrangle map.
Arizona Department of Mineral Resources Bitter Creek file.
Arizona Department of Mineral Resources San Carlos file.
MRDS database Dep. ID #10027037, MRDS ID #M001766; and Dep. ID #10186468, MAS ID #0040090063.
Mineral List
3 entries listed. 3 valid minerals.
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