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Manitoba

(Encyclopedia)CE5 Manitoba mănĭtōˈbə [key], province (2001 pop. 1,119,583), 250,934 sq mi (650,930 sq km), including 39,215 sq mi (101,580 sq km) of water surface, W central Canada. The history of Manit...

floodplain

(Encyclopedia)floodplain, level land along the course of a river formed by the deposition of sediment during periodic floods. Floodplains contain such features as levees, backswamps, delta plains, and oxbow lakes. ...

alizarin

(Encyclopedia)alizarin əlĭzˈərĭn [key], or 1,2-dihydroxyanthraquinone, mordant vegetable dye obtained originally from the root of the madder plant (Rubia tinctorum), in which it occurs as a glucoside. The term...

Pontiac, city, United States

(Encyclopedia)Pontiac, industrial city (1990 pop. 71,166), seat of Oakland co., SE Mich., on the Clinton River; founded 1818 by promoters from Detroit, inc. as a city 1861. Industries developed early and expanded a...

Saint Croix, rivers, North America

(Encyclopedia)Saint Croix. 1 River, 75 mi (121 km) long, rising in the Chiputneticook Lakes and flowing SE to Passamaquoddy Bay, forming part of the U.S.-Canada border; navigable to Calais, Maine. The river is used...

Roscommon, county, Republic of Ireland

(Encyclopedia)Roscommon rŏskŏmˈən [key], county (1991 pop. 51,876), 951 sq mi (2,463 sq km), central Republic of Ireland. The county seat is Roscommon. A part of the central plain of Ireland, the region is low-...

Tikal

(Encyclopedia)Tikal tēkälˈ [key], ruined city of the Classic Period of the Maya, N central Petén, Guatemala. The largest and possibly the oldest of the Maya cities, Tikal consists of nine groups of courts and p...

North Cascades National Park

(Encyclopedia)North Cascades National Park, 504,781 acres (204,436 hectares), N Washington. Located in the Cascade Range, the park has outstanding alpine scenery, including high jagged peaks, glaciers, icefalls, ha...

Ouachita

(Encyclopedia)Ouachita wôˈshĭtôˌ [key], river, c.600 mi (970 km) long, rising in the Ouachita Mts., W Ark. It flows east, southeast, and south through a cotton-producing region of S Arkansas and NE Louisiana a...

Washo

(Encyclopedia)Washo wäˈshō [key], Native North Americans occupying the region around Washo and Tahoe lakes in W Nevada and E California in the mid-19th cent. The Paiute were their inveterate enemies; before the ...