This district is on the east flank of the Sierra Nevada in northwestern Inyo County. It is about 15 miles southwest of Bishop. The principal source of gold in the district has been the Cardinal or Wilshire-Bishop Creek mine, which was worked on a large scale during the early 1900s and again from 1933 to 1938. It has an estimated total production of more than $1 million. The ore deposits occur in a zone of quartzite, which is enclosed in granitic rocks. The are bodies are up to eight feet thick and contain fine free gold and fairly abundant pyrite, pyrrhotite, chalcopyrite, sphalerite and arsenopyrite. The deposits have been developed to a depth of 600 feet.
Tucker, W. S., and Sompson, R. J., 1938, Inyo County, Cardinal Gold Mining Company: California Div. Mines Rept. 34, pp. 389-390.
Waring, C. A" and Huguenin, Emile, 1919, Inyo County, Wilshire-Bishop Creek mine: California Min. Bur. Rept. 15, p. 85.
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