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.

Quick Facts Etymology, Location ...

Sprague River
The lower Sprague River
Sprague River and vicinity
Location of the mouth of the Sprague River in Oregon
Etymology	Capt. F.B. Sprague, commander of Fort Klamath in 1866[1]
Location
Country	United States
State	Oregon
County	Klamath
Physical characteristics
Source	Confluence of the Sprague River's north and south forks
• location	near Bly, Klamath County, Oregon
• coordinates	42°26′16″N 121°06′34″W[2]
• elevation	4,325 ft (1,318 m)[3]
Mouth	Williamson River
• location	Chiloquin, Klamath County, Oregon
• coordinates	42°34′16″N 121°52′28″W[2]
• elevation	4,163 ft (1,269 m)[2]
Basin size	1,565 sq mi (4,050 km2)[4]
Discharge
• location	1 mile (1.6 km) northeast of Chiloquin, 5.4 miles (8.7 km) from mouth[4]
• average	580 cu ft/s (16 m3/s)[4]
• minimum	50 cu ft/s (1.4 m3/s)
• maximum	14,900 cu ft/s (420 m3/s)
National Wild and Scenic River
Official name	Sprague River (North Fork)
Type	Scenic
Designated	October 28, 1988

Close

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 42.437650°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 42.5287618°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 42.4815400°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 42.5712475°N 121.8744593°W / 42.5712475; -121.8744593 (Sprague River mouth).

It receives the Sycan River from the north at Beatty. Superb trout fishing exists in the Sprague and its tributaries.

• List of rivers of Oregon
• List of longest streams of Oregon