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Iowa, indigenous people of North America

(Encyclopedia) IowaIowaīˈəwə, –wāˌ [key], Native North Americans whose language belongs to the Siouan branch of the Hokan-Siouan linguistic stock (see Native American languages); also called the…

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…

Branson, Edwin Bayer

(Encyclopedia) Branson, Edwin Bayer, 1877–1950, American geologist, b. Belleville, Kans., Ph.D. Univ. of Chicago, 1905. He taught at Oberlin College (1905–10) and from 1910 was professor of geology…

Gibson, Paris

(Encyclopedia) Gibson, Paris, 1830–1920, American pioneer and politician, b. Brownfield, Maine. After serving in the Maine legislature he moved to Minneapolis, where he built the first flour mill and…

Mandan, city, United States

(Encyclopedia) MandanMandanmănˈdăn, –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…

America's Ten Most Endangered Rivers, 2012

Each year the organization American Rivers analyzes the condition of the nation's rivers to determine which are the most “endangered.” Threats to these rivers include dams and channelizations that…

river

(Encyclopedia) river, stream of water larger than a brook or creek. Land surfaces are never perfectly flat, and as a result the runoff after precipitation tends to flow downward by the shortest and…

Williston

(Encyclopedia) Williston, city (1990 pop. 13,131), seat of Williams co., NW N.Dak., on the Missouri River; inc. 1904. An early riverboating town, its importance increased with the arrival of the…

Colter, John

(Encyclopedia) Colter, JohnColter, Johnkōlˈtər [key], c.1775–1813, American trapper and guide, b. Virginia. In 1803 he enlisted in the Lewis and Clark expedition and in 1806, on the return trip, was…