Other Names: West Comstock, Argentine, Corduroy
Commodities: gold, silver, tungsten
The Jumbo district lies on the western slope of the Virginia Range west of Virginia City. The original district name was Argentine.
DeGroot, 1863; Stretch, 1867, p. 18, 23; Angel, 1881, p. 538; King, 1885, p. 513; Washoe County Records, 1888; Stuart, 1909, p. 152; Lincoln, 1923, p. 236; Stoddard, 1932, p. 83; Overton, 1947, p. 66; Bonham, 1969, p. 64; Stager and Tingley, 1988, p. 200
Jumbo Placer District Description
West flank of the Virginia Range, T. 16 N., R. 20 E.
Virginia City 15-minute quadrangle.
Thompson, 1956, Geologic map of the Virginia City quadrangle, Nevada (pl. 3), scale 1:62,500.
From Reno, 16 miles south on U.S. Highway 395 to junction with dirt road that leads east, up the flank of Virginia Range, about 6 miles to Jumbo mining district.
The Jumbo district is a small lode mining district on the opposite flank of the Virginia Range from the Comstock district. Most of the mines are near the crest of the range (sees. 34 and 35, T. 16 N., R. 20 E.). Small amounts of placer gold were recovered from placers in this district.
Production history: Most of the placer gold credited to the Jumbo district was recovered between 1937 and 1940, by small-scale methods.
The placer gold in the Jumbo district was probably derived from the small oxidized veins that cut the Alta Formation (Miocene). Free gold is the only economically important metal in the veins.
Bonham, 1969: Describes lode deposits; notes small-scale placer mining.
Mining and Engineering World, 1913b: Reports plans to develop lodes and placers: extensive placer gravels exposed near Pandora Comstock lode.
Thompson, 1956: Briefly describes types of ores found in Jumbo district.
U.S. Bureau of Mines, 1937-40: Gives placer production figures.
Other Names: Donna Shee, Dunnashee
Commodities: gold (placer), mercury, lead, silver
Covers an area generally north of the Western Pacific Railroad tracks, including the Jungo Hills in the vicinity of Donna Shea Peak. The district extends between Antelope siding and the townsite of Jungo.
U.S. Bureau of Mines, 1954, p. 693; Johnson, 1973, p. 35; Bonham and others, 1985
Juniper Range District
Commodities: tungsten, copper, silver, gold
Located in the southern end of the Sahwave Mountains (Juniper Range) in Pershing County and extends south to Sage Hen Creek in Churchill County.
Lincoln, 1923, p. 208; Stoddard, 1932, p. 77; Johnson, 1977, p. 63; Stager and Tingley, 1988, p. 165; Tingley, 1989, p. 5