Location
Collierville is in the East Gold Belt of the Sierra Nevada in south-central Calaveras County and north-central Tuolumne County. It is about five miles due east of Murphys.
Geology
The area is underlain by west-striking beds of siliceous slate, banded quartzite, and mica schist, with several limestone lenses. Granodiorite stocks up to two miles in diameter lie in the northeast and southeast. A number of west-striking and north-dipping or northeast-striking southeast-dipping quartz veins in the metamorphic rocks contain free gold and often abundant sulfides. The quartz is white to dark gray in color. Some high-grade pockets were recovered here, and tellurides have been reported.
Mines
Collier, Dorsey, Golden Sulphuret, Louise, North Chimney Rock, Sailor Boy, True Business.
Bibliography
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., and Ransome, F. L., 1898, Big Trees folio, California: U.S. Geol. Survey Geol. Atlas of the U.S., folio 51, 8 pp.
