Delamar Mountains

Delamar Mountains
Delamar Mountains
in Nevada [1]
Highest point
Peak Chokecherry Mountain[2]
Elevation 2,449 m (8,035 ft)
Coordinates 37°32′04″N 114°44′03″W / 37.53444°N 114.73417°W / 37.53444; -114.73417 
Dimensions
Length 50 mi (80 km) NNE
Width 11 mi (18 km)
Geography
Country United States
State Nevada
District Lincoln County
Range coordinates 37°17′53″N 114°45′58″W / 37.29806°N 114.76611°W / 37.29806; -114.76611Coordinates: 37°17′53″N 114°45′58″W / 37.29806°N 114.76611°W / 37.29806; -114.76611
Topo map USGS Gregerson Basin

The Delamar Mountains are a mountain range in Lincoln County, Nevada, named after Captain Joseph Raphael De Lamar.[1] The range extends for approximately 50 miles (80 km) in a NNE–SSW orientation with a width of about 11 miles (18 km). Surrounding ranges include the Burnt Springs Range and the Chief Range to the north, the Clover Mountains and Meadow Valley Mountains to the east and the Sheep Range and South Pahroc Range on the west. The Delamar Valley lies to the west, the Kane Springs Valley to the east and the Coyote Springs Valley lies to the south of the range.[2][3]

U.S. Route 93 traverses the north end of the range between Crystal Springs and Caliente. The elevation of the route reaches 6243 feet at Oak Springs Summit pass. Nevada State Route 317 follows Rainbow Canyon south along the northeast margin of the range between Caliente and Elgin.[2][3]

The range's crest forms part of the Great Basin Divide between the Meadow Watershed and the Dry Lake Watershed, which includes Delamar Dry Lake and the old mining townsite of Delamar.

The Delamar Mountains Wilderness Area covers the southern portion of the range.[4]

Geology

The range contains Paleozoic sedimentary rocks which were faulted and deformed during the Sevier orogeny. Two periods of silicic volcanism occurred during the Cenozoic producing multiple layers of ash flow tuff. The first occurred during the Oligocene to early Miocene (27 to 18.6 Ma) with sources from the Central Nevada Caldera Complex and Caliente Caldera events. The Kane Springs Wash Caldera in the central part of the Delamar range and extending into the adjacent Meadow Valley Mountains erupted at 14.5 Ma producing the Kane Wash Tuff.[5]

References

  1. 1 2 "Delamar Mountains". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-04.
  2. 1 2 3 Caliente, Nev.–Utah, 30x60 Minute Topographic Quadrangle, USGS, 1978
  3. 1 2 Clover Mts., Nevada–Utah, 30x60 Minute Topographic Quadrangle, USGS, 1978
  4. ↑ Fact sheet: Delamar Mountains Wilderness, Nevada Bureau of Land Management
  5. ↑ Page, W.R., 1995, Low Angle Faults in Devonian Rocks of the Southern Delamar Mountains, Lincoln County, Nevada, pp 205-216 in USGS Bulletin 2056-G
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