San Emidio District
Other Names: Mud Lake
Commodities: gold, silver, mercury, montmorillonite, sulfur
Includes the San Emidio desert and the northern Lake Range north of Winnemucca (Mud) Lake.
Bonham, 1969, p. 94; Papke, 1970, p. 39; Tingley, 1989a, p. 11
San Francisco District
Other Names: Hercules Gate, Hercules
County: White Pine
Commodities: silver, lead
The district occupies Heusser Mountain, an extension of the Egan Range west of McGill. Mines are located on the mountain’s eastern and southwestern flanks, north of Hercules Gap (Hercules Gate). San Francisco was originally organized as the Hercules district.
Stretch, 1867, p. 98; Browne, 1868, p. 424; White, 1871, p. 85; Angel, 1881, p. 656; Hose and others, 1976, p. 75
San Jacinto District
Other Names: Poker Brown
Commodities: silver, lead, arsenic
Situated 9 miles northwest of Rye Patch Station, in the southern tip of the Antelope Range. The district, discovered by Poker Brown, includes the Poker Brown Mine and is sometimes called the Poker Brown district.
Whitehill, 1877, p. 66; Lincoln, 1923, p. 216; Stoddard, 1932, p. 80; Vanderburg, 1936b, p. 35; La Heist, 1964, p. 66; Johnson, 1977, p. 86; Bonham, 1980
Sand Pass District
Other Names: Astor Pass, Flanigan, Honey Lake, Sand Pass mining area
Commodities: fuller’s earth, calcium carbonate, gold
Includes the north end of the Virginia Mountains and the Terraced Hills in the Astor Pass area. The Sand Pass district also includes the Flanigan area of Lincoln (1923). Gold and silver are reported to have been mined from the Vernon Mine, 15 miles east of Doyle, California.
Lincoln, 1923, p. 234, 238; Overton, 1947, 671; Tingley, 1989a, p. 14; Tingley, 1990, p. 46