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List of longest streams of Oregon facts for kids

Kids Encyclopedia Facts
Indian Mary 2
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 KlamathSiskiyou 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 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 kmdagger
&&&&&&&&&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 kmdagger
&&&&&&&&&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 kmdagger
&&&&&&&&&&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 kmdagger
&&&&&&&&&&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 kmdagger
&&&&&&&&&&&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 WashingtonIdaho 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 kmdagger
&&&&&&&&&&&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 kmdagger
&&&&&&&&&&&&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 kmdagger
&&&&&&&&&&&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 kmdagger
&&&&&&&&&&&&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 JeffersonWasco county line
Cow Creek Jordan Creek &&&&&&&&&&&&&051.&&&&&051 mi
82 kmdagger
&&&&&&&&&&&&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 kmdagger
&&&&&&&&&&&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
A panorama of Portland, with many buildings on either side of the Willamette River, with a number of bridges crossing it
The Willamette River (10th longest) runs through the center of Portland, Oregon.

Map

Applegate River Bully Creek Burnt River Butter Creek Calapooia River Chetco River Chewaucan River Clackamas River Columbia River Cow Creek Cow Creek Crooked Creek Crooked River Deschutes River Donner und Blitzen River Dry Creek Dry River Fifteenmile Creek Grande Ronde River Illinois River Imnaha River John Day River Jordan Creek Klamath River Little Deschutes River Long Tom River Lost River Luckiamute River Malheur River McKenzie River Middle Fork John Day River Middle Fork Willamette River Minam River Molalla River Nehalem River Nestucca River North Fork Coquille River North Fork John Day River North Fork Malheur River North Santiam River North Umpqua River Owyhee River Powder River Pudding River Rattlesnake Creek Rock Creek Rock Creek Rogue River Sandy River Siletz River Silver Creek Silvies River Siuslaw River Smith River Snake River South Fork Coquille River South Fork Crooked River South Fork John Day River South Santiam River South Umpqua River South Yamhill River Sprague River Succor Creek Sycan River Trout Creek Tualatin River Umatilla River Umpqua River Walla Walla River Wallowa River Warm Springs River West Little Owyhee River Willamette River Williamson River Willow Creek Willow Creek Yaquina River Pacific Ocean OregonOregon Rivers
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

kids search engine
List of longest streams of Oregon Facts for Kids. Kiddle Encyclopedia.