Jordan Creek (Owyhee River)

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Jordan Creek
Owyheerivermap.jpg
Map showing Jordan Creek location
Name origin: For Michael M. Jordan, whose party discovered gold along the creek in 1863
Country United States
States Idaho, Oregon
Source Owyhee Mountains
 - location near Silver City, Owyhee County, Idaho
 - elevation 7,551 ft (2,302 m) [1]
 - coordinates 42°58′21″N 116°44′39″W / 42.97250°N 116.74417°W / 42.97250; -116.74417 [2]
Mouth Owyhee River
 - location near Rome, Malheur County, Oregon
 - elevation 3,363 ft (1,025 m) [2]
 - coordinates 42°51′45″N 117°38′29″W / 42.86250°N 117.64139°W / 42.86250; -117.64139Coordinates: 42°51′45″N 117°38′29″W / 42.86250°N 117.64139°W / 42.86250; -117.64139 [2]
Length 99 mi (159 km) [3]
Basin 1,305 sq mi (3,380 km2) [4]
Discharge for near Oregon–Idaho border
 - average 183 cu ft/s (5 m3/s) [5]
 - max 7,530 cu ft/s (213 m3/s)
 - min 1.2 cu ft/s (0 m3/s)
Location of the mouth of Jordan Creek in Oregon

Jordan Creek is a 99-mile (159 km) tributary of the Owyhee River in the northwestern United States.[3] It flows generally west from near Silver City, Idaho, in the Owyhee Mountains to near Rome in the Oregon High Desert.[6][7] Major tributaries are Big Boulder, Soda, Louse, Spring, Rock, Meadow, Combination, and Louisa creeks in Idaho and Cow Creek in Oregon.[5] The creek is named for Michael M. Jordan, who led a party that discovered gold along the creek in 1863.[8]

Watershed[edit]

Jordan Creek's watershed of 1,305 square miles (3,380 km2) is almost evenly divided between the two states, 46 percent in Idaho and 54 percent in Oregon.[4] Although the upper parts of the basin in the Silver City Mountain Range supported mining camps and towns in the late 19th century through the early 20th century, they were generally abandoned when the gold and silver played out.[9] Much of the population in the 21st century lives on small homesteads, ranches, and farms scattered throughout the watershed.[10] Jordan Valley, Oregon, is the basin's only population center that has permanent, year-round residents, while Silver City has mostly part-time or weekend residents.[10]

Land use in the watershed is divided among irrigated agriculture, range land, forests, mining, and riparian zones.[10] The primary uses are cow-calf grazing in the uplands and hay production in the irrigated lowlands.[9] Average precipitation varies from about 21 inches (53 cm) a year in the mountains of Idaho to about 11 inches (28 cm) in the plateaus of eastern Oregon.[11] To control water flow for irrigation, most of the watershed's hydrology has been modified to some degree by large reservoirs in Oregon and in-stream diversions in Idaho.[11]

Discharge[edit]

Based on 28 years of record-keeping from 1946 to 1971 and from 2003 to 2004, the average discharge of Jordan Creek, measured about 4 miles (6 km) upstream of the Oregon–Idaho border, is 183 cubic feet per second (5.2 m3/s).[5] The lowest recorded discharge was 1.2 cubic feet per second (0.034 m3/s) in September 1962, and the highest was 7,530 cubic feet per second (213 m3/s) on December 31, 1965.[5] This flow came from slightly less than 46 percent of the total watershed.[4]

See also[edit]

References[edit]

  1. ^ Source elevation derived from Google Earth search using Geographic Names Information System source coordinates.
  2. ^ a b c "Jordan Creek". Geographic Names Information System. United States Geological Survey. November 28, 1980. Retrieved September 8, 2010. 
  3. ^ a b "National Hydrography Dataset". United States Geological Survey. Retrieved September 3, 2010. 
  4. ^ a b c NRCS, p. 2
  5. ^ a b c d NRCS, p. 10
  6. ^ Oregon Atlas & Gazetteer (Map) (1991 ed.). DeLorme Mapping. § 75. ISBN 0-89933-235-8. 
  7. ^ Idaho Atlas & Gazetteer (Map) (2007 ed.). DeLorme Mapping. § 24. ISBN 0-89933-284-6. 
  8. ^ McArthur, pp. 518–19
  9. ^ a b Idaho DEQ, pp. 31–32
  10. ^ a b c Idaho DEQ, p. xviii
  11. ^ a b Idaho DEQ, p. 1

Works cited[edit]