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Sprague River (Oregon)

Sprague River
Sprague River (Oregon).jpg
The lower Sprague River
Name origin: Capt. F.B. Sprague, commander of Fort Klamath in 1866
Country United States
State Oregon
County Klamath
Source Confluence of the Sprague River's north and south forks
 - location near Bly, Klamath County, Oregon
 - elevation 4,325 ft (1,318 m)
 - coordinates 42°26′16″N 121°06′34″W / 42.43778°N 121.10944°W / 42.43778; -121.10944 
Mouth Williamson River
 - location Chiloquin, Klamath County, Oregon
 - elevation 4,163 ft (1,269 m)
 - coordinates 42°34′16″N 121°52′28″W / 42.57111°N 121.87444°W / 42.57111; -121.87444Coordinates: 42°34′16″N 121°52′28″W / 42.57111°N 121.87444°W / 42.57111; -121.87444 
Basin 1,565 sq mi (4,053 km2)
Discharge for 1 mile (1.6 km) northeast of Chiloquin, 5.4 miles (8.7 km) from mouth
 - average 580 cu ft/s (16 m3/s)
 - max 14,900 cu ft/s (422 m3/s)
 - min 50 cu ft/s (1 m3/s)
Wpdms shdrlfi020l sprague river.jpg
Sprague River and vicinity
Location of the mouth of the Sprague River in Oregon

The Sprague River is a tributary of the Williamson River, approximately 75 miles (121 km) long, in southwestern Oregon in the United States. It drains an arid volcanic plateau region east of the Cascade Range in the watershed of the Klamath River.

It is formed by the confluence of its north and south forks in eastern Klamath County, approximately 35 miles (56 km) east-northeast of Klamath Falls at 42°26′16″N 121°06′34″W / 42.437650°N 121.109435°W / 42.437650; -121.109435 (Sprague River source). The North Fork Sprague River, 30 miles (48 km), rises in southwestern Lake County in the Fremont National Forest near Gearhart Mountain at 42°31′44″N 120°49′06″W / 42.5287618°N 120.8183115°W / 42.5287618; -120.8183115 (North Fork Sprague River source) and flows southwest. The South Fork Sprague River, 30 miles (48 km), rises northeast of Quartz Mountain Pass at 42°28′54″N 120°47′13″W / 42.4815400°N 120.7869201°W / 42.4815400; -120.7869201 (South Fork Sprague River source) and flows west-northwest. The combined stream flows west through the broad Sprague Valley, past the small communities of Bly, Beatty, and Sprague River. It joins the Williamson from the east at Chiloquin, about 10 miles (16 km) north of the mouth of the Williamson on Upper Klamath Lake at 42°34′16″N 121°52′28″W / 42.5712475°N 121.8744593°W / 42.5712475; -121.8744593 (Sprague River mouth).


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