The Deschutes River ( ) in central Oregon is a major tributary of the Columbia River. The river provides much of the drainage on the eastern side of the Cascade Range in Oregon, gathering many of the tributaries that descend from the drier, eastern flank of the mountains. The Deschutes provided an important route to and from the Columbia for Native Americans for thousands of years, and then in the 19th century for pioneers on the Oregon Trail. The river flows mostly through rugged and arid country, and its valley provides a cultural heart for central Oregon. Today the river supplies water for irrigation and is popular in the summer for whitewater rafting and fishing.
The river flows generally north, as do several other large Oregon tributaries of the Columbia River, including the Willamette and John Day.
Course
The headwaters of the Deschutes River are at Little Lava Lake, a natural lake in the Cascade Range approximately northwest of the city of La Pine. The river flows south into Crane Prairie Reservoir, then into Wickiup Reservoir, from where it heads in a northeasterly direction past the resort community of Sunriver and into the city of Bend, about from the river mouth.
In central Bend, the river enters Mirror Pond, an impoundment behind Newport hydroelectric dam. The pond extends upstream to the Galveston Bridge and is a feature of Drake Park as well as Harmon, Pageant, and Brooks parks. From April through October, diversions to Central Oregon Irrigation District canals reduce the river flow between Bend and Pelton Reregulating Dam, at river mile (RM) 100; that is, river kilometer (RK) 160.
The river continues north from Bend, and just west of Redmond, Oregon. Here it passes by Eagle Crest Resort and Cline Falls State Scenic Viewpoint. As it heads north through the central Oregon high desert, the river carves a gorge bordered by large basalt cliffs. By the time it reaches Lake Billy Chinook, a reservoir west of Madras, the river is approximately below the surrounding plateau, the Little Agency Plains and Agency Plains. At Lake Billy Chinook the river is joined by the Crooked and Metolius rivers.
Beyond the dam, the river continues north in a gorge well below the surrounding countryside. It passes through the Warm Springs Indian Reservation, which includes the city of Warm Springs and the Kah-Nee-Ta resort. The river ends at its confluence with the Columbia River, southwest of Biggs Junction and from the Columbia's mouth on the Pacific Ocean.
Tributaries
Named tributaries of the Deschutes River from source to mouth include Snow Creek then the Cultus River, Cultus Creek and Deer Creek, which enter at Crane Prairie Reservoir. Further downstream come the Fall River, the Little Deschutes River, and the Spring River followed by Tumalo Creek and Whychus Creek.
The Metolius River and the Crooked River are next, both entering at Lake Billy Chinook. Then come Seekseequa Creek and Willow Creek followed by Dry Hollow and Campbell, Shitike and Trout creeks, after which comes the Warm Springs River. Further downstream are Swamp, Skookum, Oak, Antoken, Cove, Eagle, Nena, Wapinitia and Bakeoven creeks. Spring Creek is next, followed by Oak Springs Creek and the White River. Below that are Winterwater and Elder creeks.
History
Prior to 80,000 years ago, the river ran along the east side of Pilot Butte and a lava flow from Lava Top Butte filled in this ancient channel. Previously, the basalt of the Bend lava flow, associated with the Lava River Cave, had diverted the river westward to its present-day location.
The river was named Rivière des Chutes or Rivière aux Chutes, French for River of the Falls, during the period of fur trading. The waterfall it referred to was the Celilo Falls on the Columbia River, near where the Deschutes flowed into it. (These falls no longer exist, having been inundated by the lake behind The Dalles Dam).
Lewis and Clark encountered the river on October 22, 1805, and referred to it by the Native American name Towarnehiooks; on their return journey they gave it the new name Clarks River. Variant names include Clarks River, River of the Falls, Riviere des Chutes, Chutes River, and Falls River.
During the middle 19th century, the river was a major obstacle for immigrants on the Oregon Trail. The major crossing point on the river was near its mouth in present-day Deschutes River State Recreation Area. Many immigrants camped on the bluff on the west side of the river after making the crossing. The remains of the trail leading up to the top of the bluff are still visible.