Pend Oreille River

Pend Oreille Pend-d'Oreille, Clark Fork
Albeni Falls Dam on the Pend Oreille River
Map of the Pend Oreille River and its main tributaries.
Location
Country	United States, Canada
State	Washington, Idaho
Province	British Columbia
City	Sandpoint, ID
Physical characteristics
Source	Lake Pend Oreille
• location	Idaho
• coordinates	48°14′20″N 116°36′25″W / 48.23889°N 116.60694°W / 48.23889; -116.60694
• elevation	2,064 ft (629 m)[1]
Mouth	Columbia River
• location	British Columbia
• coordinates	49°0′13″N 117°37′13″W / 49.00361°N 117.62028°W / 49.00361; -117.62028
• elevation	1,371 ft (418 m)[2]
Length	130 mi (210 km)[3]
Basin size	25,792 sq mi (66,800 km2)[4]
Discharge
• location	below Box Canyon Dam, 34.3 miles (55.2 km) from the mouth[5]
• average	26,320 cu ft/s (745 m3/s)[6]
• minimum	82 cu ft/s (2.3 m3/s)
• maximum	167,000 cu ft/s (4,700 m3/s)
Basin features
Tributaries
• right	Clark Fork, Pack River, Priest River, Salmo River

The Pend Oreille River (/ˌpɒndəˈreɪ/ POND-ə-RAY) is a tributary of the Columbia River, approximately 130 miles (209 km) long, in northern Idaho and northeastern Washington in the United States, as well as southeastern British Columbia in Canada. In its passage through British Columbia its name is spelled Pend-d'Oreille River.^[7] It drains a scenic area of the Rocky Mountains along the U.S.-Canada border on the east side of the Columbia. The river is sometimes defined as the lower part of the Clark Fork, which rises in western Montana. The river drains an area of 66,800 square kilometres (25,792 sq mi),^[4] mostly through the Clark Fork and its tributaries in western Montana and including a portion of the Flathead River in southeastern British Columbia. The full drainage basin of the river and its tributaries accounts for 43% of the entire Columbia River Basin above the confluence with the Columbia.^[8] The total area of the Pend Oreille basin is just under 10% of the entire 258,000-square-mile (670,000 km²) Columbia Basin. Box Canyon Dam is currently underway on a multimillion-dollar project for a fish ladder.