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Three C Ranch Mine (Mary West Mine), Peppersauce Wash, Apache Peak area, Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pinal Co., Arizona, USA

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A former underground Cu-Pb-Au-Ag mine located in sec. 30, T10S, R16E, 1½ miles NNE of Rice Peak, in the South Fork of Peppersauce Wash, about 1 mile SSE of Apache Peak (USBM gives the location for the Three C Ranch Mine in sec. 27, 3 miles E of the Mary West Mine located on the Mammoth Quadrangle, on National Forest land. The Campo Bonito Quadrangle has no mine in either location). First produced 1955. Owned by Ms Mary West (1958). Mary West had hundreds of claims in the area. One ADMR report says 400, another 800. Operated by Mr. Joe Navarro in 1957. Lee Boyer was the mill superintendent(1959).

Mineralization is a vein deposit with a lens-like orebody to 1.22 meters wide hosted in slate of the Pioneer formation and quartzite. Veins are 3-4 feet wide. Vein widens to lens-like bodies of ore. Ore control was a slate-quartzite contact. It was unclear if igneous porphyry is present at the vein. S.C. Creasey in USGS Bull. 1218 states that the mine is in Precambrian sediments of the Pioneer formation; however, L. Boyer in the ADMR file states that the mine is at a quartz monzonite-diorite contact. It is possible that these reports describe different mine areas on Mary West's extensive claim block. Mineralization is associated with Late Cretaceous-Tertiary porphyritic intrusion. These Late Cretaceous-Tertiary rocks are exposed about ½ mile S of the mine in a large pod.

NW-trending Pioneer Formation beds dip 30-35NE. Bodies of Late Cretaceous granodiorite intruded into folded and faulted Precambrian sediments and diabase, and Cambrian sediments. NW and N-trending faults exist throughout the district.

Workings included 1 inclined shaft with a 30 degree dip; 311 feet deep stoping at 160 foot level.

Mineral List



2 entries listed. 1 valid mineral.

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References

Creasey, S.C. (1967) General Geology of the Mammoth Quadrangle, Pinal County, Arizona, USGS Bulletin 1218, Plate 1.

Arizona Department of Mineral Resources Three C Ranch mine and mill file.

U.S. Bureau of Mines file data, cluster 465.

MRDS database Dep. ID #10046289, MRDS ID #M241185.

 
Mineral and/or Locality  
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