John Day River
Country	United States
State	Oregon
Length	281 mi (452 km) [1]
Watershed	5,090 sq mi (13,183 km²) [2]
Discharge at	Columbia River, east of Biggs, Oregon
- average	1,160 cu ft/s (33 m³/s) [2]
- maximum	40,200 cu ft/s (1,138 m³/s)
- minimum	6 cu ft/s (0 m³/s)
Source	Strawberry Mountains
- location	Malheur National Forest, Grant County
- elevation	9,000 ft (2,743 m) [3]
Mouth	Columbia River
- elevation	265 ft (81 m) [3]
Major tributaries
- left	South Fork John Day River
- right	North Fork John Day River

This article is about the John Day River in eastern Oregon. The United States of America —commonly referred to as the Oregon ( is a state in the Pacific Northwest region of the United States. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand The square mile is an imperial and US unit of Area equal the area of a square of one statute mile. Square Kilometre ( US spelling square kilometer) symbol km2, is a decimal multiple of the SI unit of The Columbia River (known as Biggs Junction is a Census-designated place (CDP in Sherman County, Oregon, United States. The cubic foot is an imperial and US customary (non- metric) unit of Volume, used in the United States Canada and the United Kingdom The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units CM3 redirects here If you were looking for the 3rd game in the Cooking Mama series abbreviated as CM3 see here. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units The cubic foot is an imperial and US customary (non- metric) unit of Volume, used in the United States Canada and the United Kingdom The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units CM3 redirects here If you were looking for the 3rd game in the Cooking Mama series abbreviated as CM3 see here. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units The cubic foot is an imperial and US customary (non- metric) unit of Volume, used in the United States Canada and the United Kingdom The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units CM3 redirects here If you were looking for the 3rd game in the Cooking Mama series abbreviated as CM3 see here. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units The Strawberry Mountains are a range of the state of Oregon, USA, whose highest peak is Strawberry Mountain. The Malheur National Forest is a National Forest in the US state of Oregon. Grant County is a county located in the US state of Oregon. In 2000 its population was 7935 A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International The Columbia River (known as A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International Oregon ( is a state in the Pacific Northwest region of the United States. There is also the John Day River in 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 John Day River is a tributary of the Columbia River, approximately 281 miles (452 km) long, in northeastern Oregon in the United States. The Columbia River (known as Oregon ( is a state in the Pacific Northwest region of the United States. The United States of America —commonly referred to as the 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. Irrigation is an artificial application of water to the soil usually for assisting in growing crops Its free-flowing course furnishes habitat for diverse species, including wild steelhead runs. The rainbow trout ( Oncorhynchus mykiss) is a species of Salmonid native to tributaries of the Pacific Ocean in Asia and North America However, the steelhead populations are under federal endangered species protections, and chinook salmon have been proposed for ESA protection. An endangered species is a population of an organism which is at risk of becoming Extinct because it is either few in numbers or threatened by changing environmental or predation

The river was named for John Day, a member of the Astor Expedition, an overland expedition to the mouth of the Columbia River that left from St. Louis, Missouri in 1810. John Day (abt 1770- February 16, 1820) was an American hunter and fur trapper in the old Oregon Country, which term generally designated The Astor Expedition of 1810-1812 was the next overland expedition from St The Columbia River (known as Day wandered lost through this part of Oregon in the winter of 1811–12.

Drainage basin

The John Day River passing by Sheep Rock in the John Day Fossil Beds National Monument

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 Range in a northwest zigzag, then entering the Columbia upstream from the Columbia River Gorge. John Day Fossil Beds National Monument is a 14000 acre (57 km² park in eastern The Blue Mountains are a Mountain range located largely in eastern Oregon and stretching into southeastern Washington in the United States The Columbia River Gorge is a Canyon of the Columbia River in the Pacific Northwest of the United States. It flows through exceptionally scenic canyons in its upper course, with several significant paleontological sites along its banks. Palaeontology redirects here For the Scientific journal, see Palaeontology (journal.

The main branch of the John Day River rises in the Strawberry Mountains in eastern Grant County, and the four main forks each have their heads in different parts of the Malheur National Forest. The Strawberry Mountains are a range of the state of Oregon, USA, whose highest peak is Strawberry Mountain. Grant County is a county located in the US state of Oregon. In 2000 its population was 7935 The Malheur National Forest is a National Forest in the US state of Oregon. The main fork flows initially north, then west through the John Day Valley and through the city of John Day. John Day is a city located about north of Canyon City in Grant County Oregon, at the intersection of U 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. Dayville is a city in Grant County, Oregon, United States. It was incorporated in 1913 John Day Fossil Beds National Monument is a 14000 acre (57 km² park in eastern

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 of the John Day River above Monument, Grant County, Oregon). Kimberly is an unincorporated community in Grant County Oregon, United States. The river then flows west across Wheeler County. Wheeler County is a county located in the US state of Oregon. At the county line with Jefferson County it flows north, past the Clarno Unit of the John Day Fossil Beds National Monument. Jefferson County is a county located in the US state of Oregon. 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. A meander in general is a bend in a sinuous watercourse also known as an oxbow loop or simply an Oxbow. Sherman County is a county located in the US state of Oregon. Gilliam County is a county located in the US state of Oregon.

It joins the Columbia from the southeast approximately 16 miles (26 km) northeast of Biggs. Biggs Junction is a Census-designated place (CDP in Sherman County, Oregon, United States. The mouth of the river is on the narrow Lake Umatilla reservoir, formed on the Columbia by the John Day Dam, approximately 2 miles (3. John Day Dam is a hydroelectric Dam spanning the Columbia River in the northwestern United States. 2 km) downstream from the mouth of the John Day.

Recreation and ecosystem

Mouth of the John Day River on the Columbia, spanned by a railroad bridge

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 Congress designated 147. The United States Congress is the bicameral Legislature of the federal government of the United States of America, consisting of two houses 5 miles (237. 4 km) of the river from Service Creek to Tumwater Falls as the John Day Wild and Scenic River, as part of the National Wild and Scenic River program. National Wild and Scenic River is a designation for certain Protected areas in the United States. The segment of the river is a popular destination for anadromous steelhead and warm water bass fishing, as well as whitewater rafting. The rainbow trout ( Oncorhynchus mykiss) is a species of Salmonid native to tributaries of the Pacific Ocean in Asia and North America Bass (ˈbæs is a name shared by many different species of popular Gamefish. Rafting or whitewater rafting is a challenging recreational activity utilizing a Raft to navigate a River or other bodies of water

In addition to wild spring chinook salmon and bass, the river furnishes habitat for redband trout, bull trout, and westslope cutthroat trout. Redband trout is a fish name that may be a synonym for the Rainbow trout, Oncorhynchus mykiss, but is also used more narrowly for two subspecies with well-defined The Westslope cutthroat trout ( Oncorhynchus clarki lewisi) also known as the blackspotted cutthroat, is a subspecies of the Cutthroat trout ( Oncorhynchus There are no hatchery salmon or steelhead released in the John Day River. The rainbow trout ( Oncorhynchus mykiss) is a species of Salmonid native to tributaries of the Pacific Ocean in Asia and North America

See also

• List of Oregon rivers
• List of National Wild and Scenic Rivers

References

External links

• National Park Service: John Day Wild and Scenic River
• Irrigation and the John Day River
• The Nature Conservancy: Middle Fork John Day River