Columbia Encyclopedia

Search results

500 results found

Mississippi, river, United States

(Encyclopedia)Mississippi, river, principal river of the United States, c.2,350 mi (3,780 km) long, exceeded in length only by the Missouri, the chief of its numerous tributaries. The combined Missouri-Mississippi ...

Bighorn, river, United States

(Encyclopedia)Bighorn, river, 461 mi (741 km) long, formed in W central Wyo. by the confluence of the Wind and Pop Agie rivers and flowing north to join the Yellowstone River in S Mont. The Bighorn basin, part of t...

Grand River, rivers, United States

(Encyclopedia)Grand River. 1 River, 260 mi (418 km) long, rising in S Mich. and flowing N to Lansing, then NW to Lake Michigan at Grand Haven. It is the longest river in the state and is navigable to the city of Gr...

Yankton, city, United States

(Encyclopedia)Yankton, city (1990 pop. 12,703), seat of Yankton co., extreme SE S.Dak., on the Missouri River; inc. 1869. A railroad and trade center in an agricultural region, it has grain elevators, creameries, a...

James, rivers, United States

(Encyclopedia)James. 1 Unnavigable river, 710 mi (1,143 km) long, rising in central N.Dak. and flowing across S.Dak. to the Missouri River at Yankton, S.Dak. Jamestown Dam on the river is an irrigation and flood co...

Ohio, river, United States

(Encyclopedia)Ohio, river, 981 mi (1,579 km) long, formed by the confluence of the Allegheny and Monongahela rivers in SW Pa., at Pittsburgh; it flows northwest, then generally southwest to enter the Mississippi Ri...

Missouri Compromise

(Encyclopedia)Missouri Compromise, 1820–21, measures passed by the U.S. Congress to end the first of a series of crises concerning the extension of slavery. By 1818, Missouri Territory had gained sufficient popul...

Milk, river, United States and Canada

(Encyclopedia)Milk, river, 729 mi (1,173 km) long, rising in the Rocky Mts., NW Mont. It flows N into Alberta, Canada, then in long curves eastward, S into Montana again, and generally SE to the Missouri River, ent...

Mandan, city, United States

(Encyclopedia)Mandan mănˈdăn, –dən [key], city (1990 pop. 15,177), seat of Morton co., S N.Dak., on the Missouri River opposite Bismarck; inc. 1881. A railroad division point, it is the distribution center fo...

Little Missouri

(Encyclopedia)Little Missouri. 1 River, c.145 mi (230 km) long, rising in the Ouachita Mts., SW Ark., and flowing generally SE to join the Ouachita River N of Camden. North of Murfreesboro is Narrows Dam (1950), wh...