There are several small lode-gold mines, prospects and dry placer deposits in an area known as the Grapevine district. It is in the Paradise Mountains in eastern San Bernardino counnty about 15 miles north Barstow. A number of quartz veins in granitic rocks contain free gold, and copper and manganese minerals. The veins are narrow and the deposits are shallow. The Olympus mine apparently in the only property that has had much development work. Also the well-known Waterman silver mine is here.
Wright, L. A., Stewart, R. M., Gay, T. E., Jr., and Hazenbush, G, 1953, San Bernardino County, Olympus mine: California Jour. Mines and Geol., vol. 49, p. 76.