Columbia Encyclopedia

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Boise, river, United States

(Encyclopedia)Boise, river, c.160 mi (260 km) long, rising in SW Idaho and flowing west to join the Snake River at the Oregon line. In 1811 the Boise River, originally called Reed's River, was explored by an expedi...

Provo, river, United States

(Encyclopedia)Provo, river, c.70 mi (110 km) long, rising in the Uinta Mts., NE Utah, and flowing SW past Provo to Utah Lake. It was early used for irrigation, but after Utah Lake was badly depleted in the 1930s, t...

Red Deer, river, Canada

(Encyclopedia)Red Deer, river, 385 mi (620 km) long, rising in the Rocky Mts. in Banff National Park, SW Alta., Canada, and flowing NE past Red Deer city, then SE and E across the plains to the South Saskatchewan R...

Copper, river, United States

(Encyclopedia)Copper, river, c.300 mi (480 km) long, rising in the Wrangell Mts., SE Alaska, and flowing S through the Chugach Mts. to the Gulf of Alaska. Copper deposits near the upper river, long mined by natives...

Savannah, river, United States

(Encyclopedia)Savannah, river, 314 mi (505 km) long, formed by the confluence of the Tugaloo and Seneca rivers and flowing SE to the Atlantic Ocean; with the Tugaloo it forms the entire S.C.–Ga. boundary. Savanna...

Cheyenne, river, United States

(Encyclopedia)Cheyenne, river, 527 mi (848 km) long, rising in E Wyo. and flowing NE to the Missouri River near Pierre, S.Dak. The Cheyenne basin is part of the Missouri River basin project. The U.S. Bureau of Recl...

Iowa, river, United States

(Encyclopedia)Iowa, river, 329 mi (529 km) long, rising in the lakes of N Iowa and flowing SE to the Mississippi River, SE Iowa; Cedar River (300 mi/483 km long) is its chief tributary. A power dam crosses the gorg...

Wisconsin, river, United States

(Encyclopedia)Wisconsin, river, c.430 mi (690 km) long, rising in the lake district, NE Wis., and flowing generally SW across central Wis. to the Mississippi River near Prairie du Chien. At Portage it is connected ...

Miami, river, United States

(Encyclopedia)Miami mīămˈē, –ə [key] or Great Miami, river, c.160 mi (260 km) long, formed in W Ohio near Indian Lake and flowing generally SW past Dayton to the Ohio River at the Ind. line. The Miami River ...

Alabama, river, United States

(Encyclopedia)Alabama, river, 315 mi (507 km) long, formed in central Ala. by the confluence of the Coosa and Tallapoosa rivers N of Montgomery, Ala., and flowing SW to Mobile, Ala., where it joins the Tombigbee to...