List of longest streams of Oregon facts for kids

Rogue River (seventh longest) near Indian Mary Park in Josephine County

Seventy-seven rivers and creeks of at least 50 miles (80 km) in total length are the longest streams of the U.S. state of Oregon. All of these streams originate in the United States except the longest, the Columbia, which begins in the Canadian province of British Columbia and flows 1,249 miles (2,010 km) to the sea near Astoria. The second-longest, the Snake River, which at 1,078 miles (1,735 km) is the only other stream of more than 1,000 miles (1,600 km) on the list, begins in Wyoming and flows through parts of Idaho and Washington, as well as Oregon. Some of the other streams also cross borders between Oregon and California, Nevada, Idaho, or Washington, but the majority flow entirely within Oregon.

The Atlas of Oregon ranks 31 rivers in the state by average streamflow; the top five are the Columbia, Snake, Willamette, Santiam, and Umpqua. Not all Oregon rivers with high average flows are on this list of longest streams because neither their main stems nor any of their tributaries (including what are called "forks") are at least 50 miles (80 km) long. High-flow streams mentioned in the Atlas but not included in this long-stream list are the Metolius, Hood, Youngs, and Coos rivers. On the other hand, the list includes four low-flow intermittent streams—Dry River, Rattlesnake Creek, Rock Creek, and Dry Creek—that cross parts of the Oregon High Desert.

The direction of Oregon stream flow is influenced by four major drainage divides: the Oregon Coast Range on the west, the Cascade Range further inland, the Klamath–Siskiyou Mountains in the southwest, and the Blue Mountains in the northeast. One set of streams, including the Nehalem River, flows directly into the Pacific Ocean or into larger streams flowing directly to the Pacific; other streams, such as the Deschutes River, flow into the Columbia River or its tributaries. A third set, including the Klamath River and its tributaries, originates in Oregon, but its waters eventually flow into northern California before reaching the ocean. Other streams like the Donner und Blitzen River flow into closed basins, such as Malheur Lake, that have no outlet to the sea.

Source data for the table below came from topographic maps created by the United States Geological Survey and published on-line by TopoQuest, and from the Atlas of Oregon; the Oregon Atlas and Gazetteer; two federally produced geographic information system (GIS) datasets—the National Hydrography Dataset and the National Watershed Boundary Dataset—and other sources as noted. In the table, total lengths are given in miles (mi) and kilometers (km), and elevations are in feet (ft) and meters (m).

Rivers and creeks

Key
Stream is not entirely within the state

Longest streams of Oregon

Name	Mouth	Total length	Watershed area	Mouth coordinates	Mouth elevation	Source coordinates	Source elevation	Source and mouth locations
Columbia River	Pacific Ocean	&&&&&&&&&&&01249.&&&&&01,249 mi 2,010 km	&&&&&&&&&0258000.&&&&&0258,000 mi2 668,000 km2	46°14′39″N 124°03′29″W / 46.24417°N 124.05806°W / 46.24417; -124.05806 (Columbia River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	50°13′00″N 115°51′00″W / 50.21667°N 115.85000°W / 50.21667; -115.85000 (Columbia River (source))	&&&&&&&&&&&02657.&&&&&02,657 ft 810 m	Source at Columbia Lake, British Columbia, mouth near Astoria
Snake River	Columbia River	&&&&&&&&&&&01078.&&&&&01,078 mi 1,674 km	&&&&&&&&&0108000.&&&&&0108,000 mi2 280,000 km2	46°11′10″N 119°01′43″W / 46.18611°N 119.02861°W / 46.18611; -119.02861 (Snake River (mouth))	&&&&&&&&&&&&0358.&&&&&0358 ft 109 m	44°07′49″N 110°13′10″W / 44.13028°N 110.21944°W / 44.13028; -110.21944 (Snake River (source))	&&&&&&&&&&&09199.&&&&&09,199 ft 2,804 m	Source in Absaroka Range, Wyoming, mouth near Tri-Cities, Washington
Owyhee River	Snake River	&&&&&&&&&&&&0346.&&&&&0346 mi 557 km	&&&&&&&&&&011049.&&&&&011,049 mi2 28,617 km2	43°48′46″N 117°01′32″W / 43.81278°N 117.02556°W / 43.81278; -117.02556 (Owyhee River (mouth))	&&&&&&&&&&&03185.&&&&&03,185 ft 666 m	41°30′17″N 115°44′30″W / 41.50472°N 115.74167°W / 41.50472; -115.74167 (Owyhee River (source))	&&&&&&&&&&&06918.&&&&&06,918 ft 2,109 m	Source in Independence Mountains of Nevada, mouth near Nyssa
Klamath River	Pacific Ocean	&&&&&&&&&&&&0287.&&&&&0287 mi 462 km	&&&&&&&&&&015700.&&&&&015,700 mi2 40,700 km2	41°32′49″N 124°05′00″W / 41.54694°N 124.08333°W / 41.54694; -124.08333 (Klamath River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	42°11′29″N 121°46′58″W / 42.19139°N 121.78278°W / 42.19139; -121.78278 (Klamath River (source))	&&&&&&&&&&&04090.&&&&&04,090 ft 1,247 m	Source at Upper Klamath Lake, mouth near Crescent City, California
John Day River	Columbia River	&&&&&&&&&&&&0284.&&&&&0284 mi 457 km	&&&&&&&&&&&07880.&&&&&07,880 mi2 20,400 km2	45°43′57″N 120°38′57″W / 45.73250°N 120.64917°W / 45.73250; -120.64917 (John Day River (mouth))	&&&&&&&&&&&&0269.&&&&&0269 ft 82 m	44°14′44″N 118°33′08″W / 44.24556°N 118.55222°W / 44.24556; -118.55222 (John Day River (source))	&&&&&&&&&&&06676.&&&&&06,676 ft 2,035 m	Source in Strawberry Range, mouth near Rufus
Deschutes River	Columbia River	&&&&&&&&&&&&0251.&&&&&0251 mi 405 km	&&&&&&&&&&010400.&&&&&010,400 mi2 26,939 km2	45°38′07″N 120°54′52″W / 45.63528°N 120.91444°W / 45.63528; -120.91444 (Deschutes River (mouth))	&&&&&&&&&&&&0164.&&&&&0164 ft 50 m	43°54′33″N 121°45′40″W / 43.90917°N 121.76111°W / 43.90917; -121.76111 (Deschutes River (source))	&&&&&&&&&&&04747.&&&&&04,747 ft 1,447 m	Source in Cascade Range, mouth near Biggs Junction
Rogue River	Pacific Ocean	&&&&&&&&&&&&0216.&&&&&0216 mi 348 km	&&&&&&&&&&&05159.&&&&&05,159 mi2 13,360 km2	42°25′21″N 124°25′45″W / 42.42250°N 124.42917°W / 42.42250; -124.42917 (Rogue River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	43°03′57″N 122°13′56″W / 43.06583°N 122.23222°W / 43.06583; -122.23222 (Rogue River (source))	&&&&&&&&&&&05320.&&&&&05,320 ft 1,622 m	Source in Cascade Range, mouth near Gold Beach
Malheur River	Snake River	&&&&&&&&&&&&0190.&&&&&0190 mi 306 km	&&&&&&&&&&&04703.&&&&&04,703 mi2 12,180 km2	44°03′33″N 116°58′31″W / 44.05917°N 116.97528°W / 44.05917; -116.97528 (Malheur River (mouth))	&&&&&&&&&&&02133.&&&&&02,133 ft 650 m	44°08′05″N 118°37′14″W / 44.13472°N 118.62056°W / 44.13472; -118.62056 (Malheur River (source))	&&&&&&&&&&&04958.&&&&&04,958 ft 1,511 m	Source in Strawberry Range, mouth near Ontario
Willamette River	Columbia River	&&&&&&&&&&&&0187.&&&&&0187 mi 301 km	&&&&&&&&&&011400.&&&&&011,400 mi2 30,000 km2	45°39′10″N 122°45′53″W / 45.65278°N 122.76472°W / 45.65278; -122.76472 (Willamette River (mouth))	&&&&&&&&&&&&&010.&&&&&010 ft 3 m	44°01′23″N 123°01′25″W / 44.02306°N 123.02361°W / 44.02306; -123.02361 (Willamette River (source))	&&&&&&&&&&&&0438.&&&&&0438 ft 134 m	Source near Eugene, mouth near Portland
Grande Ronde River	Snake River	&&&&&&&&&&&&0182.&&&&&0182 mi 293 km	&&&&&&&&&&&04000.&&&&&04,000 mi2 10,240 km2	46°04′49″N 116°58′47″W / 46.08028°N 116.97972°W / 46.08028; -116.97972 (Grande Ronde River (mouth))	&&&&&&&&&&&&0820.&&&&&0820 ft 250 m	44°57′34″N 118°15′38″W / 44.95944°N 118.26056°W / 44.95944; -118.26056 (Grande Ronde River (source))	&&&&&&&&&&&07446.&&&&&07,446 ft 2,270 m	Source in Blue Mountains, mouth on Washington–Idaho border
Powder River	Snake River	&&&&&&&&&&&&0153.&&&&&0153 mi 246 km	&&&&&&&&&&&01603.&&&&&01,603 mi2 4,150 km2	44°44′37″N 117°02′56″W / 44.74361°N 117.04889°W / 44.74361; -117.04889 (Powder River (mouth))	&&&&&&&&&&&02064.&&&&&02,064 ft 629 m	44°44′30″N 118°12′22″W / 44.74167°N 118.20611°W / 44.74167; -118.20611 (Powder River (source))	&&&&&&&&&&&04402.&&&&&04,402 ft 1,342 m	Source in Blue Mountains, mouth near Richland
Crooked River	Deschutes River	&&&&&&&&&&&&0125.&&&&&0125 mi 201 km	&&&&&&&&&&&04300.&&&&&04,300 mi2 11,137 km2	44°34′25″N 121°16′19″W / 44.57361°N 121.27194°W / 44.57361; -121.27194 (Crooked River (mouth))	&&&&&&&&&&&01949.&&&&&01,949 ft 594 m	44°06′05″N 120°03′04″W / 44.10139°N 120.05111°W / 44.10139; -120.05111 (Crooked River (source))	&&&&&&&&&&&03624.&&&&&03,624 ft 1,105 m	Source near Ochoco Mountains, mouth near Culver
Middle Fork Willamette River	Willamette River	&&&&&&&&&&&&0122.&&&&&0122 mi 196 km	&&&&&&&&&&&01355.&&&&&01,355 mi2 3,510 km2	44°01′23″N 123°01′25″W / 44.02306°N 123.02361°W / 44.02306; -123.02361 (Middle Fork Willamette River (mouth))	&&&&&&&&&&&&0436.&&&&&0436 ft 133 m	43°24′28″N 122°06′20″W / 43.40778°N 122.10556°W / 43.40778; -122.10556 (Middle Fork Willamette River (source))	&&&&&&&&&&&05552.&&&&&05,552 ft 1,692 m	Source in Calapooya Mountains, mouth near Springfield
Nehalem River	Pacific Ocean	&&&&&&&&&&&&0128.&&&&&0128 mi 206 km	&&&&&&&&&&&&0852.&&&&&0852 mi2 2,210 km2	45°39′29″N 123°56′04″W / 45.65806°N 123.93444°W / 45.65806; -123.93444 (Nehalem River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	45°43′53″N 123°25′26″W / 45.73139°N 123.42389°W / 45.73139; -123.42389 (Nehalem River (source))	&&&&&&&&&&&02420.&&&&&02,420 ft 740 m	Source in Northern Oregon Coast Range, mouth near Wheeler
Silvies River	Malheur Lake	&&&&&&&&&&&&0119.&&&&&0119 mi 192 km	&&&&&&&&&&&01350.&&&&&01,350 mi2 3,500 km2	43°34′05″N 119°02′04″W / 43.56806°N 119.03444°W / 43.56806; -119.03444 (Silvies River (mouth))	&&&&&&&&&&&04150.&&&&&04,150 ft 1,265 m	44°07′19″N 119°13′53″W / 44.12194°N 119.23139°W / 44.12194; -119.23139 (Silvies River (source))	&&&&&&&&&&&05649.&&&&&05,649 ft 1,722 m	Source in Blue Mountains, mouth near Burns
North Fork John Day River	John Day River	&&&&&&&&&&&&0117.&&&&&0117 mi 188 km	&&&&&&&&&&&&0600.&&&&&0600 mi2 1,554 km2	44°45′22″N 119°38′19″W / 44.75611°N 119.63861°W / 44.75611; -119.63861 (North Fork John Day River (mouth))	&&&&&&&&&&&01834.&&&&&01,834 ft 559 m	44°51′48″N 118°14′13″W / 44.86333°N 118.23694°W / 44.86333; -118.23694 (North Fork John Day River (source))	&&&&&&&&&&&07420.&&&&&07,420 ft 2,260 m	Source in Elkhorn Mountains, mouth near Kimberly
Umpqua River	Pacific Ocean	&&&&&&&&&&&&0112.&&&&&0112 mi 180 km	&&&&&&&&&&&04668.&&&&&04,668 mi2 12,133 km2	43°40′09″N 124°12′18″W / 43.66917°N 124.20500°W / 43.66917; -124.20500 (Umpqua River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	43°16′05″N 123°26′46″W / 43.26806°N 123.44611°W / 43.26806; -123.44611 (Umpqua River (source))	&&&&&&&&&&&&0362.&&&&&0362 ft 110 m	Source near Roseburg, mouth near Reedsport
Siuslaw River	Pacific Ocean	&&&&&&&&&&&&0110.&&&&&0110 mi 180 km	&&&&&&&&&&&&0773.&&&&&0773 mi2 2,000 km2	44°01′01″N 124°08′14″W / 44.01694°N 124.13722°W / 44.01694; -124.13722 (Siuslaw River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	43°49′23″N 123°15′42″W / 43.82306°N 123.26167°W / 43.82306; -123.26167 (Siuslaw River (source))	&&&&&&&&&&&&0632.&&&&&0632 ft 193 m	Source in Central Oregon Coast Range, mouth at Florence
North Umpqua River	Umpqua River	&&&&&&&&&&&&0110.&&&&&0110 mi 170 km	&&&&&&&&&&&01356.&&&&&01,356 mi2 3,510 km2	43°16′05″N 123°26′45″W / 43.26806°N 123.44583°W / 43.26806; -123.44583 (North Umpqua River (mouth))	&&&&&&&&&&&&0361.&&&&&0361 ft 110 m	43°15′24″N 122°00′03″W / 43.25667°N 122.00083°W / 43.25667; -122.00083 (North Umpqua River (source))	&&&&&&&&&&&05985.&&&&&05,985 ft 1,824 m	Source in Cascade Range, mouth near Roseburg
South Umpqua River	Umpqua River	&&&&&&&&&&&&0110.&&&&&0110 mi 170 km	&&&&&&&&&&&01801.&&&&&01,801 mi2  4,660 km2	43°16′04″N 123°26′46″W / 43.26778°N 123.44611°W / 43.26778; -123.44611 (South Umpqua River (mouth))	&&&&&&&&&&&&0361.&&&&&0361 ft 110 m	43°06′26″N 122°35′22″W / 43.10722°N 122.58944°W / 43.10722; -122.58944 (South Umpqua River (source))	&&&&&&&&&&&02009.&&&&&02,009 ft 612 m	Source in Cascade Range, mouth near Roseburg
Little Deschutes River	Deschutes River	&&&&&&&&&&&&0105.&&&&&0105 mi 169 km	&&&&&&&&&&&01020.&&&&&01,020 mi2 2,642 km2	43°51′14″N 121°27′14″W / 43.85389°N 121.45389°W / 43.85389; -121.45389 (Little Deschutes River (mouth))	&&&&&&&&&&&04163.&&&&&04,163 ft 1,269 m	43°18′25″N 121°59′43″W / 43.30694°N 121.99528°W / 43.30694; -121.99528 (Little Deschutes River (source))	&&&&&&&&&&&06219.&&&&&06,219 ft 1,896 m	Source in Cascade Range, mouth near Sunriver
Jordan Creek	Owyhee River	&&&&&&&&&&&&&099.&&&&&099 mi 159 km	&&&&&&&&&&&01305.&&&&&01,305 mi2 3,380 km2	42°51′45″N 117°38′29″W / 42.86250°N 117.64139°W / 42.86250; -117.64139 (Jordan Creek (mouth))	&&&&&&&&&&&03363.&&&&&03,363 ft 1,025 m	42°58′21″N 116°44′39″W / 42.97250°N 116.74417°W / 42.97250; -116.74417 (Jordan Creek (source))	&&&&&&&&&&&07551.&&&&&07,551 ft 2,302 m	Source in Owyhee Mountains of Idaho, mouth near Rome
Burnt River	Snake River	&&&&&&&&&&&&&098.&&&&&098 mi 158 km	&&&&&&&&&&&01041.&&&&&01,041 mi2 2,700 km2	44°21′54″N 117°13′34″W / 44.36500°N 117.22611°W / 44.36500; -117.22611 (Burnt River (mouth))	&&&&&&&&&&&02073.&&&&&02,073 ft 632 m	44°30′15″N 118°10′51″W / 44.50417°N 118.18083°W / 44.50417; -118.18083 (Burnt River (source))	&&&&&&&&&&&03824.&&&&&03,824 ft 1,166 m	Source in Blue Mountains, mouth near Huntington
North Santiam River	Santiam River	&&&&&&&&&&&&&092.&&&&&092 mi 148 km	&&&&&&&&&&&&0766.&&&&&0766 mi2 1,984 km2	44°41′12″N 123°00′24″W / 44.68667°N 123.00667°W / 44.68667; -123.00667 (North Santiam River (mouth))	&&&&&&&&&&&&0217.&&&&&0217 ft 66 m	44°28′39″N 121°53′04″W / 44.47750°N 121.88444°W / 44.47750; -121.88444 (North Santiam River (source))	&&&&&&&&&&&05133.&&&&&05,133 ft 1,565 m	Source in Cascade Range, mouth in Willamette Valley
Smith River	Umpqua River	&&&&&&&&&&&&&091.&&&&&091 mi 146 km	&&&&&&&&&&&&0352.&&&&&0352 mi2 910 km2	43°44′13″N 124°04′43″W / 43.73694°N 124.07861°W / 43.73694; -124.07861 (Smith River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 mi 0 km	43°44′25″N 123°20′22″W / 43.74028°N 123.33944°W / 43.74028; -123.33944 (Smith River (source))	&&&&&&&&&&&01406.&&&&&01,406 ft 429 m	Source in Central Oregon Coast Range, mouth near Reedsport
Umatilla River	Columbia River	&&&&&&&&&&&&&089.&&&&&089 mi 143 km	&&&&&&&&&&&02328.&&&&&02,328 mi2 6,030 km2	45°55′09″N 119°21′20″W / 45.91917°N 119.35556°W / 45.91917; -119.35556 (Umatilla River (mouth))	&&&&&&&&&&&&0269.&&&&&0269 ft 82 m	45°43′32″N 118°11′17″W / 45.72556°N 118.18806°W / 45.72556; -118.18806 (Umatilla River (source))	&&&&&&&&&&&02332.&&&&&02,332 ft 711 m	Source in Blue Mountains, mouth at Umatilla
Dry River (intermittent)	Crooked River	&&&&&&&&&&&&&088.&&&&&088 mi 142 km	&&&&&&&&&&&&0752.&&&&&0752 mi2 1,948 km2	44°20′10″N 121°02′50″W / 44.33611°N 121.04722°W / 44.33611; -121.04722 (Dry River (mouth))	&&&&&&&&&&&02782.&&&&&02,782 ft 848 m	43°46′56″N 120°16′44″W / 43.78222°N 120.27889°W / 43.78222; -120.27889 (Dry River (source))	&&&&&&&&&&&05886.&&&&&05,886 ft 1,794 m	Source in Hampton Buttes near Brothers, mouth upstream of Smith Rock
McKenzie River	Willamette River	&&&&&&&&&&&&&088.&&&&&088 mi 142 km	&&&&&&&&&&&01216.&&&&&01,216 mi2 3,150 km2	44°07′32″N 123°06′20″W / 44.12556°N 123.10556°W / 44.12556; -123.10556 (McKenzie River (mouth))	&&&&&&&&&&&&0371.&&&&&0371 ft 113 m	44°21′37″N 121°59′39″W / 44.36028°N 121.99417°W / 44.36028; -121.99417 (McKenzie River (source))	&&&&&&&&&&&03570.&&&&&03,570 ft 1,088 m	Source in Cascade Range, mouth near Eugene
Silver Creek	Harney Lake	&&&&&&&&&&&&&087.&&&&&087 mi 140 km	&&&&&&&&&&&01700.&&&&&01,700 mi2 4,403 km2	43°15′47″N 119°11′21″W / 43.26306°N 119.18917°W / 43.26306; -119.18917 (Silver Creek (mouth))	&&&&&&&&&&&04101.&&&&&04,101 ft 1,250 m	43°56′28″N 119°33′25″W / 43.94111°N 119.55694°W / 43.94111; -119.55694 (Silver Creek (source))	&&&&&&&&&&&05830.&&&&&05,830 ft 1,777 m	Source in Malheur National Forest, mouth at Harney Lake
Sprague River	Williamson River	&&&&&&&&&&&&&084.&&&&&084 mi 135 km	&&&&&&&&&&&01560.&&&&&01,560 mi2 4,050 km2	42°34′16″N 121°52′28″W / 42.57111°N 121.87444°W / 42.57111; -121.87444 (Sprague River (mouth))	&&&&&&&&&&&04163.&&&&&04,163 ft 1,269 m	42°26′16″N 121°06′34″W / 42.43778°N 121.10944°W / 42.43778; -121.10944 (Sprague River (source))	&&&&&&&&&&&04326.&&&&&04,326 ft 1,319 m	Source on high plateau of eastern Klamath County, mouth near Chiloquin
Clackamas River	Willamette River	&&&&&&&&&&&&&083.&&&&&083 mi 134 km	&&&&&&&&&&&&0940.&&&&&0940 mi2 2,435 km2	45°22′21″N 122°36′31″W / 45.37250°N 122.60861°W / 45.37250; -122.60861 (Clackamas River (mouth))	&&&&&&&&&&&&&010.&&&&&010 ft 3 m	44°49′17″N 121°47′47″W / 44.82139°N 121.79639°W / 44.82139; -121.79639 (Clackamas River (source))	&&&&&&&&&&&04904.&&&&&04,904 ft 1,496 m	Source in Cascade Range, mouth at Gladstone and Oregon City
Tualatin River	Willamette River	&&&&&&&&&&&&&083.&&&&&083 mi 134 km	&&&&&&&&&&&&0712.&&&&&0712 mi2 1,844 km2	45°20′17″N 122°39′05″W / 45.33806°N 122.65139°W / 45.33806; -122.65139 (Tualatin River (mouth))	&&&&&&&&&&&&&059.&&&&&059 ft 18 m	45°28′55″N 123°24′21″W / 45.48194°N 123.40583°W / 45.48194; -123.40583 (Tualatin River (source))	&&&&&&&&&&&01978.&&&&&01,978 ft 603 m	Source in Northern Oregon Coast Range, mouth near West Linn
Rock Creek	John Day River	&&&&&&&&&&&&&082.&&&&&082 mi 132 km	&&&&&&&&&&&&0507.&&&&&0507 mi2 1,313 km2	45°34′36″N 120°24′17″W / 45.57667°N 120.40472°W / 45.57667; -120.40472 (Rock Creek (John Day; mouth))	&&&&&&&&&&&&0404.&&&&&0404 ft 123 m	45°02′00″N 119°34′35″W / 45.03333°N 119.57639°W / 45.03333; -119.57639 (Rock Creek (John Day; source))	&&&&&&&&&&&04351.&&&&&04,351 ft 1,326 m	Source in Umatilla National Forest, mouth east of Wasco
Willow Creek	Columbia River	&&&&&&&&&&&&&079.&&&&&079 mi 127 km	&&&&&&&&&&&&0880.&&&&&0880 mi2 2,279 km2	45°48′21″N 120°00′24″W / 45.80583°N 120.00667°W / 45.80583; -120.00667 (Willow Creek (Columbia River; mouth))	&&&&&&&&&&&&0269.&&&&&0269 ft 82 m	45°09′56″N 119°20′29″W / 45.16556°N 119.34139°W / 45.16556; -119.34139 (Willow Creek (Columbia River; source))	&&&&&&&&&&&04918.&&&&&04,918 ft 1,499 m	Source in Umatilla National Forest, mouth upstream of Arlington
Donner und Blitzen River	Malheur Lake	&&&&&&&&&&&&&078.&&&&&078 mi 126 km	&&&&&&&&&&&&0618.&&&&&0618 mi2 1,600 km2	43°17′30″N 118°49′12″W / 43.29167°N 118.82000°W / 43.29167; -118.82000 (Donner und Blitzen River (mouth))	&&&&&&&&&&&04101.&&&&&04,101 ft 1,250 m	42°32′02″N 118°43′52″W / 42.53389°N 118.73111°W / 42.53389; -118.73111 (Donner und Blitzen (source))	&&&&&&&&&&&06526.&&&&&06,526 ft 1989 m	Source near Steens Mountain, mouth at Malheur Lake
South Fork Crooked River	Crooked River	&&&&&&&&&&&&&076.&&&&&076 mi 123 km	&&&&&&&&&&&01530.&&&&&01,530 mi2 4,000 km2	44°06′05″N 120°03′04″W / 44.10139°N 120.05111°W / 44.10139; -120.05111 (SF Crooked River (mouth))	&&&&&&&&&&&03622.&&&&&03,622 ft 1,104 m	43°38′55″N 120°23′40″W / 43.64861°N 120.39444°W / 43.64861; -120.39444 (SF Crooked River (source))	&&&&&&&&&&&04779.&&&&&04,779 ft 1,457 m	Source southeast of Brothers, mouth near Ochoco Mountains
Middle Fork John Day River	North Fork John Day River	&&&&&&&&&&&&&075.&&&&&075 mi 121 km	&&&&&&&&&&&&0321.&&&&&0321 mi2 833 km2	44°54′59″N 119°18′08″W / 44.91639°N 119.30222°W / 44.91639; -119.30222 (Middle Fork John Day River (mouth))	&&&&&&&&&&&02198.&&&&&02,198 ft 670 m	44°35′05″N 118°25′48″W / 44.58472°N 118.43000°W / 44.58472; -118.43000 (Middle Fork John Day River (source))	&&&&&&&&&&&04253.&&&&&04,253 ft 1,296 m	Source in Blue Mountains, mouth near Monument
Cow Creek	South Umpqua River	&&&&&&&&&&&&&075.&&&&&075 mi 121 km	&&&&&&&&&&&&0456.&&&&&0456 mi2 1,181 km2	42°56′49″N 123°20′16″W / 42.94694°N 123.33778°W / 42.94694; -123.33778 (Cow Creek (mouth))	&&&&&&&&&&&&0636.&&&&&0636 ft 194 m	42°48′09″N 122°59′30″W / 42.80250°N 122.99167°W / 42.80250; -122.99167 (Cow Creek (source))	&&&&&&&&&&&02404.&&&&&02,404 ft 733 m	Source in Umpqua National Forest, mouth at Canyonville
Sycan River	Sprague River	&&&&&&&&&&&&&075.&&&&&075 mi 121 km	&&&&&&&&&&&&0557.&&&&&0557 mi2 1,440 km2	42°27′40″N 121°17′13″W / 42.46111°N 121.28694°W / 42.46111; -121.28694 (Sycan River (mouth))	&&&&&&&&&&&04311.&&&&&04,311 ft 1,314 m	42°38′50″N 120°44′08″W / 42.64722°N 120.73556°W / 42.64722; -120.73556 (Sycan River (source))	&&&&&&&&&&&07075.&&&&&07,075 ft 2,156 m	Source on high plateau of eastern Klamath County, mouth at Beatty
Imnaha River	Snake River	&&&&&&&&&&&&&073.&&&&&073 mi 117 km	&&&&&&&&&&&&0851.&&&&&0851 mi2 2,2004 km2	45°49′03″N 116°45′53″W / 45.81750°N 116.76472°W / 45.81750; -116.76472 (Imnaha River (mouth))	&&&&&&&&&&&&0945.&&&&&0945 ft 288 m	45°06′47″N 117°07′31″W / 45.11306°N 117.12528°W / 45.11306; -117.12528 (Imnaha River (source))	&&&&&&&&&&&06641.&&&&&06,641 ft 2,024 m	Source in Wallowa Mountains, mouth on Idaho border
Calapooia River	Willamette River	&&&&&&&&&&&&&072.&&&&&072 mi 116 km	&&&&&&&&&&&&0365.&&&&&0365 mi2 945 km2	44°38′20″N 123°06′36″W / 44.63889°N 123.11000°W / 44.63889; -123.11000 (Calapooia River (mouth))	&&&&&&&&&&&&0180.&&&&&0180 ft 55 m	44°15′54″N 122°19′25″W / 44.26500°N 122.32361°W / 44.26500; -122.32361 (Calapooia River (source))	&&&&&&&&&&&04552.&&&&&04,552 ft 1,387 m	Source in Cascade Range, mouth at Albany
Williamson River	Klamath River	&&&&&&&&&&&&&070.&&&&&070 mi 110 km	&&&&&&&&&&&03000.&&&&&03,000 mi2 7,800 km2	42°27′53″N 121°57′25″W / 42.46472°N 121.95694°W / 42.46472; -121.95694 (Williamson River (mouth))	&&&&&&&&&&&04147.&&&&&04,147 ft 1,264 m	42°42′15″N 121°20′24″W / 42.70417°N 121.34000°W / 42.70417; -121.34000 (Williamson River (source))	&&&&&&&&&&&05100.&&&&&05,100 ft 1,600 m	Source on high plateau of eastern Klamath County, mouth at Upper Klamath Lake
Siletz River	Pacific Ocean	&&&&&&&&&&&&&069.&&&&&069 mi 111 km	&&&&&&&&&&&&0304.&&&&&0304 mi2 790 km2	44°54′12″N 124°00′41″W / 44.90333°N 124.01139°W / 44.90333; -124.01139 (Siletz River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	44°52′48″N 123°42′40″W / 44.88000°N 123.71111°W / 44.88000; -123.71111 (Siletz River (source))	&&&&&&&&&&&&0708.&&&&&0708 ft 216 m	Source in Central Oregon Coast Range, mouth near Lincoln City
Succor Creek	Snake River	&&&&&&&&&&&&&067.&&&&&067 mi 108 km	&&&&&&&&&&&&0494.&&&&&0494 mi2 1,279 km2	43°37′55″N 116°56′47″W / 43.63194°N 116.94639°W / 43.63194; -116.94639 (Succor Creek (mouth))	&&&&&&&&&&&02211.&&&&&02,211 ft 674 m	43°05′45″N 116°50′18″W / 43.09583°N 116.83833°W / 43.09583; -116.83833 (Succor Creek (source))	&&&&&&&&&&&06976.&&&&&06,976 ft 2,126 m	Source in Owyhee Mountains, mouth near Homedale, both in Idaho
South Santiam River	Santiam River	&&&&&&&&&&&&&066.&&&&&066 mi 106 km	&&&&&&&&&&&01040.&&&&&01,040 mi2 2,694 km2	44°41′12″N 123°00′24″W / 44.68667°N 123.00667°W / 44.68667; -123.00667 (South Santiam River (mouth))	&&&&&&&&&&&&0217.&&&&&0217 ft 66 m	44°22′27″N 122°13′05″W / 44.37417°N 122.21806°W / 44.37417; -122.21806 (South Santiam River (source))	&&&&&&&&&&&01932.&&&&&01,932 ft 589 m	Source in Cascade Range, mouth in Willamette Valley
Pudding River	Molalla River	&&&&&&&&&&&&&064.&&&&&064 mi 103 km	&&&&&&&&&&&&0527.&&&&&0527 mi2 1,360 km2	45°17′54″N 122°43′07″W / 45.29833°N 122.71861°W / 45.29833; -122.71861 (Pudding River (mouth))	&&&&&&&&&&&&&069.&&&&&069 ft 21 m	44°53′51″N 122°44′42″W / 44.89750°N 122.74500°W / 44.89750; -122.74500 (Pudding River (source))	&&&&&&&&&&&&0950.&&&&&0950 ft 290 m	Source in Waldo Hills, mouth near Canby
South Fork Coquille River	Coquille River	&&&&&&&&&&&&&063.&&&&&063 mi 101 km	&&&&&&&&&&&&0288.&&&&&0288 mi2 746 km2	43°04′49″N 124°08′29″W / 43.08028°N 124.14139°W / 43.08028; -124.14139 (South Fork Coquille River (mouth))	&&&&&&&&&&&&&013.&&&&&013 ft 4 m	42°50′24″N 123°52′30″W / 42.84000°N 123.87500°W / 42.84000; -123.87500 (South Fork Coquille River (source))	&&&&&&&&&&&03472.&&&&&03,472 ft 1,058 m	Source in Siskiyou National Forest, mouth near Myrtle Point
West Little Owyhee River	Owyhee River	&&&&&&&&&&&&&063.&&&&&063 mi 101 km	&&&&&&&&&&&&0310.&&&&&0310 mi2 803 km2	42°27′10″N 117°12′34″W / 42.45278°N 117.20944°W / 42.45278; -117.20944 (West Little Owyhee River (mouth))	&&&&&&&&&&&04373.&&&&&04,373 ft 1,333 m	42°06′30″N 117°35′03″W / 42.10833°N 117.58417°W / 42.10833; -117.58417 (West Little Owyhee River (source))	&&&&&&&&&&&06508.&&&&&06,508 ft 1,984 m	Source near McDermitt, mouth in Owyhee Desert
Bully Creek	Malheur River	&&&&&&&&&&&&&062.&&&&&062 mi 99 km	&&&&&&&&&&&&0540.&&&&&0540 mi2 1,560 km2	43°58′30″N 117°14′24″W / 43.97500°N 117.24000°W / 43.97500; -117.24000 (Bully Creek (mouth))	&&&&&&&&&&&02244.&&&&&02,244 ft 684 m	44°05′25″N 118°05′55″W / 44.09028°N 118.09861°W / 44.09028; -118.09861 (Bully Creek (source))	&&&&&&&&&&&04278.&&&&&04,278 ft 1,304 m	Source in Malheur County, mouth near Vale
Luckiamute River	Willamette River	&&&&&&&&&&&&&061.&&&&&061 mi 98 km	&&&&&&&&&&&&0315.&&&&&0315 mi2 816 km2	44°45′15″N 123°08′54″W / 44.75417°N 123.14833°W / 44.75417; -123.14833 (Luckiamute River (mouth))	&&&&&&&&&&&&0164.&&&&&0164 ft 50 m	44°47′28″N 123°32′45″W / 44.79111°N 123.54583°W / 44.79111; -123.54583 (Luckiamute River (source))	&&&&&&&&&&&02684.&&&&&02,684 ft 818 m	Source in Central Oregon Coast Range, mouth near Buena Vista
South Fork John Day River	John Day River	&&&&&&&&&&&&&060.&&&&&060 mi 97 km	&&&&&&&&&&&&0607.&&&&&0607 mi2 1,570 km2	44°28′26″N 119°32′10″W / 44.47389°N 119.53611°W / 44.47389; -119.53611 (South Fork John Day River (mouth))	&&&&&&&&&&&02329.&&&&&02,329 ft 710 m	43°55′09″N 119°19′17″W / 43.91917°N 119.32139°W / 43.91917; -119.32139 (South Fork John Day River (source))	&&&&&&&&&&&05400.&&&&&05,400 ft 1,600 m	Source in Ochoco Mountains, mouth near Dayville
Lost River	Tule Lake	&&&&&&&&&&&&&060.&&&&&060 mi 97 km	&&&&&&&&&&&02998.&&&&&02,998 mi2 7,760 km2	41°56′24″N 121°30′19″W / 41.94000°N 121.50528°W / 41.94000; -121.50528 (Lost River (mouth))	&&&&&&&&&&&04035.&&&&&04,035 ft 1,230 m	41°55′34″N 121°04′33″W / 41.92611°N 121.07583°W / 41.92611; -121.07583 (Lost River (source))	&&&&&&&&&&&04479.&&&&&04,479 ft 1,365 m	Source at Clear Lake Reservoir, mouth at Tule Lake, both in California
South Yamhill River	Yamhill River	&&&&&&&&&&&&&060.&&&&&060 mi 97 km	&&&&&&&&&&&&0492.&&&&&0492 mi2 1,274 km2	45°13′33″N 123°08′41″W / 45.22583°N 123.14472°W / 45.22583; -123.14472 (South Yamhill River (mouth))	&&&&&&&&&&&&&075.&&&&&075 ft 23 m	45°06′38″N 123°43′40″W / 45.11056°N 123.72778°W / 45.11056; -123.72778 (South Yamhill River (source))	&&&&&&&&&&&&0551.&&&&&0551 ft 168 m	Source in Northern Oregon Coast Range, mouth near McMinnville
North Fork Malheur River	Malheur River	&&&&&&&&&&&&&059.&&&&&059 mi 95 km	&&&&&&&&&&&&0550.&&&&&0550 mi2 1,424 km2	43°45′25″N 118°03′40″W / 43.75694°N 118.06111°W / 43.75694; -118.06111 (NF Malheur River (mouth))	&&&&&&&&&&&02923.&&&&&02,923 ft 891 m	44°21′58″N 118°24′16″W / 44.36611°N 118.40444°W / 44.36611; -118.40444 (NF Malheur River (source))	&&&&&&&&&&&06884.&&&&&06,884 ft 2,098 m	Source in Strawberry Range, mouth near Juntura
Yaquina River	Pacific Ocean	&&&&&&&&&&&&&059.&&&&&059 mi 95 km	&&&&&&&&&&&&0253.&&&&&0253 mi2 660 km2	44°36′44″N 124°01′04″W / 44.61222°N 124.01778°W / 44.61222; -124.01778 (Yaquina River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	44°44′57″N 123°36′06″W / 44.74917°N 123.60167°W / 44.74917; -123.60167 (Yaquina River (source))	&&&&&&&&&&&02137.&&&&&02,137 ft 651 m	Source in Central Oregon Coast Range, mouth at Newport
Butter Creek	Umatilla River	&&&&&&&&&&&&&057.&&&&&057 mi 92 km	&&&&&&&&&&&&0465.&&&&&0465 mi2 1,204 km2	45°47′41″N 119°19′44″W / 45.79472°N 119.32889°W / 45.79472; -119.32889 (Butter Creek (mouth))	&&&&&&&&&&&&0535.&&&&&0535 ft 163 m	45°12′24″N 119°10′25″W / 45.20667°N 119.17361°W / 45.20667; -119.17361 (Butter Creek (source))	&&&&&&&&&&&05034.&&&&&05,034 ft 1,534 m	Source in Umatilla National Forest, mouth upstream of Hermiston
Rattlesnake Creek (intermittent)	Crooked Creek	&&&&&&&&&&&&&057.&&&&&057 mi 92 km	&&&&&&&&&&&&0298.&&&&&0298 mi2 772 km2	42°43′24″N 117°47′42″W / 42.72333°N 117.79500°W / 42.72333; -117.79500 (Rattlesnake Creek (mouth))	&&&&&&&&&&&03770.&&&&&03,770 ft 1,149 m	42°16′55″N 117°40′10″W / 42.28194°N 117.66944°W / 42.28194; -117.66944 (Rattlesnake Creek (source))	&&&&&&&&&&&06439.&&&&&06,439 ft 1,963 m	Source in desert north of McDermitt, mouth near Burns Junction
Willow Creek	Malheur River	&&&&&&&&&&&&&057.&&&&&057 mi 92 km	&&&&&&&&&&&&0787.&&&&&0787 mi2 2,038 km2	43°59′14″N 117°13′51″W / 43.98722°N 117.23083°W / 43.98722; -117.23083 (Willow Creek (Malheur River; mouth))	&&&&&&&&&&&02234.&&&&&02,234 ft 681 m	44°20′08″N 117°56′15″W / 44.33556°N 117.93750°W / 44.33556; -117.93750 (Willow Creek (Malheur River; source))	&&&&&&&&&&&03724.&&&&&03,724 ft 1,135 m	Source near Ironside, mouth near Vale
Chetco River	Pacific Ocean	&&&&&&&&&&&&&056.&&&&&056 mi 90 km	&&&&&&&&&&&&0352.&&&&&0352 mi2 912 km2	42°02′43″N 124°16′14″W / 42.04528°N 124.27056°W / 42.04528; -124.27056 (Chetco River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	42°07′47″N 123°52′39″W / 42.12972°N 123.87750°W / 42.12972; -123.87750 (Chetco River (source))	&&&&&&&&&&&03201.&&&&&03,201 ft 976 m	Source in Klamath Mountains, mouth near Brookings
Illinois River	Rogue River	&&&&&&&&&&&&&056.&&&&&056 mi 97 km	&&&&&&&&&&&&0990.&&&&&0990 mi2 2,600 km2	42°33′00″N 124°03′58″W / 42.55000°N 124.06611°W / 42.55000; -124.06611 (Illinois River (mouth))	&&&&&&&&&&&&0102.&&&&&0102 ft 31 m	42°09′35″N 123°39′33″W / 42.15972°N 123.65917°W / 42.15972; -123.65917 (Illinois River (source))	&&&&&&&&&&&01275.&&&&&01,275 ft 389 m	Source near Cave Junction (between Klamath Mountains and Siskiyou Mountains), mouth near Agness
Rock Creek (intermittent)	Catlow Valley	&&&&&&&&&&&&&056.&&&&&056 mi 90 km	&&&&&&&&&&&&0269.&&&&&0269 mi2 697 km2	42°39′41″N 119°10′08″W / 42.66139°N 119.16889°W / 42.66139; -119.16889 (Rock Creek (Catlow Valley; mouth))	&&&&&&&&&&&04557.&&&&&04,557 ft 1,389 m	42°26′57″N 119°41′33″W / 42.44917°N 119.69250°W / 42.44917; -119.69250 (Rock Creek (Catlow Valley; source))	&&&&&&&&&&&06896.&&&&&06,896 ft 2,102 m	Source on Hart Mountain, mouth in Catlow Valley
Wallowa River	Grande Ronde River	&&&&&&&&&&&&&056.&&&&&056 mi 90 km	&&&&&&&&&&&&0927.&&&&&0927 mi2 2,400 km2	45°43′31″N 117°47′09″W / 45.72528°N 117.78583°W / 45.72528; -117.78583 (Wallowa River (mouth))	&&&&&&&&&&&02316.&&&&&02,316 ft 706 m	45°16′28″N 117°12′42″W / 45.27444°N 117.21167°W / 45.27444; -117.21167 (Wallowa River (source))	&&&&&&&&&&&04498.&&&&&04,498 ft 1,371 m	Source in Wallowa Mountains, mouth downstream of Wallowa
Sandy River	Columbia River	&&&&&&&&&&&&&055.&&&&&055 mi 89 km	&&&&&&&&&&&&0508.&&&&&0508 mi2 1,316 km2	45°34′05″N 122°24′03″W / 45.56806°N 122.40083°W / 45.56806; -122.40083 (Sandy River (mouth))	&&&&&&&&&&&&&010.&&&&&010 ft 3 m	45°22′32″N 121°43′45″W / 45.37556°N 121.72917°W / 45.37556; -121.72917 (Sandy River (source))	&&&&&&&&&&&05225.&&&&&05,225 ft 1,593 m	Source in Cascade Range, mouth near Troutdale
Long Tom River	Willamette River	&&&&&&&&&&&&&055.&&&&&055 mi 89 km	&&&&&&&&&&&&0410.&&&&&0410 mi2 1,062 km2	44°22′48″N 123°14′54″W / 44.38000°N 123.24833°W / 44.38000; -123.24833 (Long Tom River (mouth))	&&&&&&&&&&&&0256.&&&&&0256 ft 78 m	44°13′12″N 123°26′39″W / 44.22000°N 123.44417°W / 44.22000; -123.44417 (Long Tom River (source))	&&&&&&&&&&&01400.&&&&&01,400 ft 427 m	Source near Low Pass, mouth north of Monroe
Fifteenmile Creek	Columbia River	&&&&&&&&&&&&&054.&&&&&054 mi 87 km	&&&&&&&&&&&&0370.&&&&&0370 mi2 960 km2	45°36′50″N 121°07′22″W / 45.61389°N 121.12278°W / 45.61389; -121.12278 (Fifteenmile Creek (mouth))	&&&&&&&&&&&&&095.&&&&&095 ft 29 m	45°20′35″N 121°31′18″W / 45.34306°N 121.52167°W / 45.34306; -121.52167 (Fifteenmile Creek (source))	&&&&&&&&&&&06178.&&&&&06,178 ft 1,883 m	Source in Mount Hood National Forest, mouth near The Dalles
Dry Creek (intermittent)	Crooked Creek	&&&&&&&&&&&&&054.&&&&&054 mi 86 km	&&&&&&&&&&&&0499.&&&&&0499 mi2 1,184 km2	42°47′42″N 117°44′47″W / 42.79500°N 117.74639°W / 42.79500; -117.74639 (Dry Creek (mouth))	&&&&&&&&&&&03570.&&&&&03,570 ft 1,088 m	42°30′31″N 117°17′44″W / 42.50861°N 117.29556°W / 42.50861; -117.29556 (Dry Creek (source))	&&&&&&&&&&&05000.&&&&&05,000 ft 1,524 m	Source near Five Points, mouth near Burns Junction
Nestucca River	Pacific Ocean	&&&&&&&&&&&&&053.&&&&&053 mi 85 km	&&&&&&&&&&&&0370.&&&&&0370 mi2 960 km2	45°11′03″N 123°57′26″W / 45.18417°N 123.95722°W / 45.18417; -123.95722 (Nestucca River (mouth))	&&&&&&&&&&&&&&00.&&&&&00 ft 0 m	45°16′23″N 123°23′33″W / 45.27306°N 123.39250°W / 45.27306; -123.39250 (Nestucca River (source))	&&&&&&&&&&&02246.&&&&&02,246 ft 685 m	Source in Northern Oregon Coast Range, mouth near Pacific City
Warm Springs River	Deschutes River	&&&&&&&&&&&&&053.&&&&&053 mi 85 km	&&&&&&&&&&&&0541.&&&&&0541 mi2 1,401 km2	44°51′28″N 121°04′09″W / 44.85778°N 121.06917°W / 44.85778; -121.06917 (Warm Springs River (mouth))	&&&&&&&&&&&01240.&&&&&01,240 ft 378 m	44°57′39″N 121°47′21″W / 44.96083°N 121.78917°W / 44.96083; -121.78917 (Warm Springs River (source))	&&&&&&&&&&&04023.&&&&&04,023 ft 1,226 m	Source in Cascade Range, mouth near Kahneeta
North Fork Coquille River	Coquille River	&&&&&&&&&&&&&053.&&&&&053 mi 85 km	&&&&&&&&&&&&0154.&&&&&0154 mi2 399 km2	43°04′49″N 124°08′29″W / 43.08028°N 124.14139°W / 43.08028; -124.14139 (North Fork Coquille River (mouth))	&&&&&&&&&&&&&013.&&&&&013 ft 4 m	43°16′54″N 123°51′14″W / 43.28167°N 123.85389°W / 43.28167; -123.85389 (North Fork Coquille River (source))	&&&&&&&&&&&01647.&&&&&01,647 ft 502 m	Source in central Coast Range, mouth near Myrtle Point
Chewaucan River	Abert Lake	&&&&&&&&&&&&&053.&&&&&053 mi 86 km	&&&&&&&&&&&&0651.&&&&&0651 mi2 1,686 km2	42°31′21″N 120°14′59″W / 42.52250°N 120.24972°W / 42.52250; -120.24972 (Chewaucan River (mouth))	&&&&&&&&&&&04258.&&&&&04,258 ft 1,298 m	42°27′49″N 120°36′38″W / 42.46361°N 120.61056°W / 42.46361; -120.61056 (Chewaucan River (source))	&&&&&&&&&&&05151.&&&&&05,151 ft 1,570 m	Source in Fremont National Forest, mouth at Abert Lake
Applegate River	Rogue River	&&&&&&&&&&&&&051.&&&&&051 mi 82 km	&&&&&&&&&&&&0767.&&&&&0767 mi2 1,990 km2	42°25′44″N 123°26′59″W / 42.42889°N 123.44972°W / 42.42889; -123.44972 (Applegate River (mouth))	&&&&&&&&&&&&0850.&&&&&0850 ft 259 m	41°58′23″N 123°11′08″W / 41.97306°N 123.18556°W / 41.97306; -123.18556 (Applegate River (source))	&&&&&&&&&&&02534.&&&&&02,534 ft 772 m	Source in Siskiyou Mountains in California, mouth near Grants Pass
Trout Creek	Deschutes River	&&&&&&&&&&&&&051.&&&&&051 mi 82 km	&&&&&&&&&&&&0692.&&&&&0692 mi2 1,792 km2	44°49′17″N 121°05′19″W / 44.82139°N 121.08861°W / 44.82139; -121.08861 (Trout Creek (mouth))	&&&&&&&&&&&01283.&&&&&01,283 ft 391 m	44°30′42″N 120°33′20″W / 44.51167°N 120.55556°W / 44.51167; -120.55556 (Trout Creek (source))	&&&&&&&&&&&05593.&&&&&05,593 ft 1,705 m	Source in Ochoco Mountains, mouth at Jefferson–Wasco county line
Cow Creek	Jordan Creek	&&&&&&&&&&&&&051.&&&&&051 mi 82 km	&&&&&&&&&&&&0330.&&&&&0330 mi2 855 km2	42°56′51″N 117°20′38″W / 42.94750°N 117.34389°W / 42.94750; -117.34389 (Cow Creek (Jordan Creek; mouth))	&&&&&&&&&&&04216.&&&&&04,216 ft 1,285 m	43°04′23″N 116°50′23″W / 43.07306°N 116.83972°W / 43.07306; -116.83972 (Cow Creek (Jordan Creek; source))	&&&&&&&&&&&07048.&&&&&07,048 ft 2,148 m	Source near De Lamar, Idaho, mouth at Danner
Crooked Creek	Owyhee River	&&&&&&&&&&&&&051.&&&&&051 mi 82 km	&&&&&&&&&&&01340.&&&&&01,340 mi2 3,500 km2	42°52′57″N 117°41′52″W / 42.88250°N 117.69778°W / 42.88250; -117.69778 (Crooked Creek (mouth))	&&&&&&&&&&&03343.&&&&&03,343 ft 1,019 m	42°40′32″N 117°54′33″W / 42.67556°N 117.90917°W / 42.67556; -117.90917 (Crooked Creek (source))	&&&&&&&&&&&03921.&&&&&03,921 ft 1,195 m	Source at Crooked Creek Spring, mouth near Rome
Minam River	Wallowa River	&&&&&&&&&&&&&051.&&&&&051 mi 82 km	&&&&&&&&&&&&0239.&&&&&0239 mi2 618 km2	45°37′17″N 117°43′14″W / 45.62139°N 117.72056°W / 45.62139; -117.72056 (Minam River (mouth))	&&&&&&&&&&&02536.&&&&&02,536 ft 773 m	45°10′07″N 117°21′28″W / 45.16861°N 117.35778°W / 45.16861; -117.35778 (Minam River (source))	&&&&&&&&&&&07684.&&&&&07,684 ft 2,342 m	Source in the Eagle Cap Wilderness, mouth at Minam
Molalla River	Willamette River	&&&&&&&&&&&&&050.&&&&&050 mi 80 km	&&&&&&&&&&&&0877.&&&&&0877 mi2 2,270 km2	45°17′23″N 122°43′18″W / 45.28972°N 122.72167°W / 45.28972; -122.72167 (Molalla River (mouth))	&&&&&&&&&&&&&069.&&&&&069 ft 21 m	44°54′12″N 122°16′01″W / 44.90333°N 122.26694°W / 44.90333; -122.26694 (Molalla River (source))	&&&&&&&&&&&03304.&&&&&03,304 ft 1,007 m	Source in Cascade Range, mouth near Canby
Walla Walla River	Columbia River	&&&&&&&&&&&&&050.&&&&&050 mi 80 km	&&&&&&&&&&&01758.&&&&&01,758 mi2 4,453 km2	46°03′27″N 118°54′40″W / 46.05750°N 118.91111°W / 46.05750; -118.91111 (Walla Walla River (mouth))	&&&&&&&&&&&&0404.&&&&&0404 ft 123 m	45°53′54″N 118°18′28″W / 45.89833°N 118.30778°W / 45.89833; -118.30778 (Walla Walla River (source))	&&&&&&&&&&&01360.&&&&&01,360 ft 410 m	Source near Milton-Freewater, mouth near Wallula, Washington

The Willamette River (10th longest) runs through the center of Portland, Oregon.

Map

Image map of all Oregon streams more than 50 miles (80 kilometers) long. Each label is wikilinked to an article. Click on the small rectangles to the right of the caption for a larger map.

See also

• List of rivers of Oregon
• List of longest rivers in the United States by state