- John Day River
name = John Day River
country = United States
state = Oregon
length_imperial = 281
length_note = [http://www.encyclopedia.com/doc/1E1-JohnDay.html] , John Day - Encyclopedia.com]
watershed_imperial = 8000
watershed_note = [ [http://www.nwcouncil.org/fw/subbasinplanning/johnday/plan/PlanRevised.pdf John Day Subbasin Plan] , p. 18; Northwest Power and Conservation Council]
discharge_location = USGS gage 14048000, McDonald Ferry,
discharge_imperial = 2058
discharge_max_imperial = 39400
discharge_min_imperial = 0
discharge_note = [ [http://pubs.usgs.gov/wdr/2005/wdr-or-05/pdf/johnday.pdf John Day River Basin] , Water Resources Data for Oregon, Water Year 2005; USGS]
Malheur National Forest
source_country = Grant County
source_lat_NS = N
source_long_EW = W
source_elevation_imperial = 9000
source_elevation_note = [http://www.blm.gov/or/resources/recreation/johnday/index.php John Day River] - Bureau of Land Management]
mouth_lat_NS = N
mouth_long_EW = W
mouth_elevation_imperial = 265
tributary_left = South Fork John Day River
tributary_right = North Fork John Day River
:"This article is about the John Day River in eastern
Oregon. There is also the John Day River in northwestern Oregon."
The John Day River is a tributary of the
Columbia River, approximately convert|281|mi|km|0 long, in northeastern Oregonin the United States. Undammed along its entire length, the river is the second longest free-flowing river in the conterminous United States. There is extensive use of its waters for irrigation. Its free-flowing course furnishes habitat for diverse species, including wild steelhead runs. However, the steelhead populations are under federal endangered speciesprotections, and chinook salmonhave been proposed for ESA protection.
The river was named for John Day, a member of the
Astor Expedition, an overland expedition to the mouth of the Columbia Riverthat left from St. Louis, Missouriin 1810. Day wandered lost through this part of Oregon in the winter of 1811–12.
Through its tributaries, the river drains much of the western side of the Blue Mountains, flowing across the sparsely populated arid part of the state east of the
Cascade Rangein a northwest zigzag, then entering the Columbia upstream from the Columbia River Gorge. It flows through exceptionally scenic canyons in its upper course, with several significant paleontological sites along its banks.
The main branch of the John Day River rises in the
Strawberry Mountainsin eastern Grant County, and the four main forks each have their heads in different parts of the Malheur National Forest. The main fork flows initially north, then west through the John Day Valley and through the city of John Day. At Dayville in western Grant County it is joined from the south by the South Fork John Day River, then flows north through Picture Gorge and past the Sheep Rock Unit of the John Day Fossil Beds National Monument.
At Kimberly in northwestern Grant County, it is joined from the east by the
North Fork John Day River(which had already joined with the Middle Fork John Day Riverabove Monument, Grant County, Oregon). The river then flows west across Wheeler County. At the county line with Jefferson County it flows north, past the Clarno Unit of the John Day Fossil Beds National Monument. As it approaches the Columbia River in north-central Oregon it flows in an increasingly meandering course, forming the boundary between Sherman County to the west and Gilliam County to the east.
It joins the Columbia from the southeast approximately convert|16|mi|km|0 northeast of Biggs. The mouth of the river is on the narrow
Lake Umatillareservoir, formed on the Columbia by the John Day Dam, approximately convert|2|mi|km|1 downstream from the mouth of the John Day.
Recreation and ecosystem
The John Day is navigable by rafts and other small river craft. Its lower course is used for irrigation of cropland and ranching. In 1988, the
United States Congressdesignated convert|147.5|mi|km|1 of the river from Service Creekto Tumwater Falls as the John Day Wild and Scenic River, as part of the National Wild and Scenic Riverprogram. The segment of the river is a popular destination for anadromous steelhead and warm water bass fishing, as well as whitewater rafting.
In addition to wild spring
chinook salmonand bass, the river furnishes habitat for redband trout, bull trout, and westslope cutthroat trout. There are no hatchery salmon or steelheadreleased in the John Day River.
List of Oregon rivers
List of National Wild and Scenic Rivers
* [http://www.nps.gov/rivers/wsr-john-day.html National Park Service: John Day Wild and Scenic River]
* [http://www.wcei.org/Articles/BigDry/johndayriver.html Irrigation and the John Day River]
* [http://nature.org/wherewework/northamerica/states/oregon/preserves/art6799.html The Nature Conservancy: Middle Fork John Day River]
Wikimedia Foundation. 2010.
Look at other dictionaries:
John Day River — Sp Džòno Dėjaus ùpė Ap John Day River L JAV (Oregonas) … Pasaulio vietovardžiai. Internetinė duomenų bazė
John Day River — … Useful english dictionary
John Day River (northwestern Oregon) — The John Day River is a tributary of the Columbia River, approximately 15 mi (24 km) long, in northwestern Oregon in the United States. The river is one of two tributaries of the Columbia in Oregon to bear the name John Day River . The other John … Wikipedia
North Fork John Day River — Coordinates: 44°45′22″N 119°38′19″W / 44.75611°N 119.63861°W / 44.75611; 119.63861 … Wikipedia
South Fork John Day River — Geobox | River name = South Fork John Day River category = River image size = image caption = South Fork John Day River at Dayville etymology = John Day, fur trapper country = United States country state = Oregon district type = County district … Wikipedia
Middle Fork John Day River — Coordinates: 44°54′59″N 119°18′08″W / 44.91639°N 119.30222°W / 44.91639; 119.30222 … Wikipedia
Bridge Creek (John Day River) — Geobox | River name = Bridge Creek category = Creek image size = image caption = Bridge Creek in the Painted Hills etymology = A small bridge made of juniper logs that mining prospectors built over the creek in about 1862.cite book | last =… … Wikipedia
John Day — is the name of:People*John Day (dramatist) (1574–c. 1640), English dramatist *John Day (merchant) (fl. 1497 1498), English merchant, author of a letter to the Lord Grand Admiral referring to the existence of the lost book Inventio Fortunata *John … Wikipedia
John Day Fossil Beds National Monument — Gesteinsschichten über dem Fluss … Deutsch Wikipedia
John-Day-Talsperre — Lage … Deutsch Wikipedia