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Ottawa, river, Canada

(Encyclopedia)Ottawa, river, c.700 mi (1,130 km) long, largest tributary of the St. Lawrence River, Canada. It rises in the Laurentian Highlands, SW Que., and flows generally W through La Vérendrye Provincial Park...

Gambia, river, Africa

(Encyclopedia)Gambia, river, c.700 mi (1,130 km) long, rising on the Fouta Djallon, N Guinea, W Africa, and flowing generally northwest through SE Senegal then west, bisecting The Gambia, to the Atlantic Ocean at B...

Fraser, river, Canada

(Encyclopedia)Fraser, chief river of British Columbia, Canada, c.850 mi (1,370 km) long. It rises in the Rocky Mts., at Yellowhead Pass, near the British Columbia–Alta. line and flows northwest through the Rocky ...

French Broad River

(Encyclopedia)French Broad River, 210 mi (338 km) long, rising in the Blue Ridge Mts., W N.C., and flowing N and then NW to Knoxville, E Tenn., where it joins with the Holston to form the Tennessee River. The Frenc...

Bow, river, Canada

(Encyclopedia)Bow bō [key], river, 315 mi (507 km) long, rising in the Rocky Mts., S Alta., Canada, and flowing SE through Banff National Park. It emerges from the mountains in the Bow River Pass and continues pas...

Arctic Red River

(Encyclopedia)Arctic Red River, c.310 mi (500 km) long, rising in the Mackenzie Mts. of W Northwest Territories, Canada, and flowing generally NW to the Mackenzie River. At its mouth are a post of the Royal Canadia...

Pará, river, Brazil

(Encyclopedia)Pará, river, c.200 mi (320 km) long, N Brazil. It is actually the southeastern arm or estuary of the Amazon, divided from the rest of the river by Marajó island. It receives the waters of the Tocant...

Salt River valley

(Encyclopedia)Salt River valley, irrigated region around the lower course of the Salt River, which rises in mountain streams near the Mogollon Rim of the Mogollon Plateau and flows southwest to join the Gila River ...

Gatineau, river, Canada

(Encyclopedia)Gatineau gătˈĭnō [key], river, c.240 mi (390 km) long, rising in the Laurentians, SW Que., Canada, and flowing S to the Ottawa River at Gatineau. There are several rapids with hydroelectric power ...

Dordogne, river, France

(Encyclopedia)Dordogne, river, c.305 mi (490 km) long, rising near the Puy de Sancy in the Auvergne Mts., S central France. It flows southwest to join the Garonne River N of Bordeaux and to form the Gironde. The up...