Owyhee Mountains

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Owyhee Mountains
Owyhee Mountains.jpg
Highest point
PeakHayden Peak[1], Owyhee County, Idaho
Elevation2,561 m (8,402 ft)
Length40 mi (64 km) NNW-SSE
Owyhee Mountains is located in Idaho
Owyhee Mountains
location of Owyhee Mountains in Idaho[2]
CountryUnited States
StateIdaho, and Oregon
DistrictOwyhee County, Idaho and Malheur County, Oregon
Range coordinates42°58′51″N 116°39′31″W / 42.98083°N 116.65861°W / 42.98083; -116.65861Coordinates: 42°58′51″N 116°39′31″W / 42.98083°N 116.65861°W / 42.98083; -116.65861
Parent rangeOwyhee Mountain Range
Topo mapUSGS Cinnabar Mountain

The Owyhee Mountains are a mountain range in Owyhee County, Idaho and Malheur County, Oregon.[2]

Mahogany Mountain and the associated volcanic craters of the Lake Owyhee volcanic field are in the Owyhee Mountains of Oregon just east of the Owyhee Reservoir on the Owyhee River.[3]

The southeastern end of the range including the old mining area west of Silver City is referred to as the Silver City Range.[4] About 8.3 kilometres (5.2 mi) west of Silver City is the De Lamar ghost town in Jordan Creek below the mine workings on De Lamar Mountain to the south.[4] The area was active in the late 1880s. In the 1970s mining began again with the development of open pit silvergold mines on De Lamar Mountain.[5][6]


  1. ^ Cinnabar Mountain, Idaho, 7.5 Minute Topographic Quadrangle, USGS, 1990
  2. ^ a b "Owyhee Mountains". Geographic Names Information System. United States Geological Survey.
  3. ^ Cummings, Michael L., et al., Stratigraphic and structural evolution of the middle Miocene synvolcanic Oregon-Idaho graben, Geological Society of America Bulletin, 2000; v. 112, no. 5; pp. 668-682
  4. ^ a b Murphy, Idaho, 30x60 Minute Topographic Quadrangle, USGS, 1986
  5. ^ Bonnichsen, Bill; Epithermal Gold and Silver Deposits Silver City–De Lamar District, Idaho, University of Idaho, Idaho Geological Survey, Technical Report 83-4, 1983 PDF
  6. ^ De Lamar, Idaho, 7.5 Minute Topographic Quadrangle, USGS, 1990

Further reading[edit]

  • Adams, Mildretta (1986) Sagebrush Post Offices, A History of the Owyhee Country, Idaho State University Press ISBN 978-0937834138