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Colorado Springs

(Encyclopedia)Colorado Springs, city (2020 pop. 478,961), seat of El Paso co., central Colo., on Monument and Fountain creeks, at the foot of Pikes Peak; inc. ...

Colorado River storage project

(Encyclopedia)Colorado River storage project, a multipurpose plan, undertaken by the U.S. Bureau of Reclamation in 1956, to control the flow of the upper Colorado and its tributaries and to aid in the development o...

Boulder, city, United States

(Encyclopedia)Boulder, city (2020 pop. 330,758), seat of Boulder co., N central Colo.; inc. 1871. A Rocky Mountain resort and a suburb of Denver, it is the seat of th...

Reclamation, United States Bureau of

(Encyclopedia)Reclamation, United States Bureau of, agency set up in the Dept. of the Interior under the Reclamation Act of 1902. It is charged with promoting regional economies by developing water and related land...

United States

(Encyclopedia)CE5 CE5 CE5 United States, officially United States of America, republic (2015 est. pop. 319,929,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third l...

Utah , state, United States

(Encyclopedia)CE5 Utah yo͞oˈtäˌ [key], Rocky Mt. state of the W United States. It is bordered by Idaho and Wyoming (N), Colorado (E), Arizona (S), and Nevada (W), and touches New Mexico in the SE, at the Fou...

Colorado Plateau

(Encyclopedia)Colorado Plateau, physiographic region of SW North America, c.150,000 sq mi (388,500 sq km), in Arizona, Utah, Colorado, and New Mexico, including the “Four Corners” area. It is characterized by b...

Des Moines, river, United States

(Encyclopedia)Des Moines, river, 535 mi (861 km) long, rising in SW Minn. and flowing SE across Iowa to the Mississippi River at Keokuk, SE Iowa. Flowing through fertile farmland, the river floods in the spring and...

Des Plaines, river, United States

(Encyclopedia)Des Plaines, river, 110 mi (177 km) long, rising in SE Wis., and flowing S and SW through NE Ill., joining the Kankakee River S of Joliet, Ill., to form the Illinois River. The lower Des Plaines is pa...

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...