Mountain Ranch District

  
Posted July 16, 2009 in Gold Mining
Publication Info: Gold Districts of California Bulletin 193 California Division of Mines and Geology 1976 Table of Contents

Location
This is a small district in central Calaveras County in the vicinity of the town of Mountain Ranch. It includes the Cave City area.

Geology
The district is largely underlain by graphite schist, quartzite, limestone, and thin bodies of mlcose schist. Patches of Tertiary auriferous gravels overlie the bedrock. A few narrow gold-quartz veins, in schist, contain small but sometimes rich ore shoots. The ore contains free gold and abundant sulfides, especially galena.

Mines
Lode: Gaston Hill. Placer: Cotton Flat, Foley, Hidden Cave, Humboldt, Mountain Ranch, Rose Hill.

Bibliography
Clark, Lorin, 1954, Geology and mineral deposits of the Colaveritas quadrangle: California Div. Mines Spec. Rept. 40, 23 pp.

Clark, W.B., and Lydon, P.A., 1962, Calaveras County, gold: California Div. Mines and Geology County Rept. 2, pp. 32-93.

Turner, H. W., 1894, Jackson folio: U.S. Geol. Survey Geol. Atlas of the U. S., folio 11,6 pp.


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Did You Know.......

A mine is a hole in the ground, owned by a liar.
-Mark Twain

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