Coulonge River

Coulonge River
Coulonge River near Pont Davidson
Native nameRivière Coulonge (French)
Location
CountryCanada
StateQuebec
RegionOutaouais
Physical characteristics
SourceLac au Barrage
  locationLac-Pythonga, Quebec
  coordinates47°12′30″N 76°53′30″W / 47.20833°N 76.89167°W / 47.20833; -76.89167
  elevation359 m (1,178 ft)
MouthOttawa River
  location
Fort-Coulonge, Quebec
  coordinates
45°51′44″N 76°45′54″W / 45.86222°N 76.76500°W / 45.86222; -76.76500
  elevation
105 m (344 ft)
Length240 km (150 mi)
Basin size5,060 km2 (1,950 sq mi)
Discharge 
  average74.1 m3/s (2,620 cu ft/s)
  minimum25.1 m3/s (890 cu ft/s)
  maximum195 m3/s (6,900 cu ft/s)
Basin features
ProgressionOttawa RiverSt. Lawrence RiverGulf of St. Lawrence
River systemOttawa River drainage basin
Tributaries 
  leftEast Coulonge River

The Coulonge River (English: /kˈlɒn/; French: [kulɔ̃ʒ]) is a predominantly wilderness river in western Quebec, Canada.

A popular river for whitewater canoeing enthusiasts, it is often grouped together with the Dumoine and Noire Rivers as three of a kind. The three rivers share the same watershed, and have similar whitewater characteristics. All three empty into the Ottawa River within a distance of 105 kilometers (65 mi) from one another.