The Whipple Mountains are in the southeast corner of San Bernardino County. Gold was probably first mined here at an early date, and there was prospecting and development work in the area again in the 1930s and early 1940s. Native gold and oxidized copper and iron minerals occur in narrow quartz veins in gneiss and metamorphic rocks of Precambrian age.
Bluff and Western, Ethel Leona, Gold Zone, Islander, Nickel Plate, Roulette, Vidal Gold.
Wright, L. A., Stewart, R. M., Gay, T. E., Jr., and Hazenbush, G. C., 1953, San Bernardino County, gold tabulated list: California Jour. Mines and Geol., vol. 49, p. 259.