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Monongahela
(Encyclopedia)Monongahela mənŏnˌgəhēˈlə, –hāˈlə [key], river, 128 mi (206 km) long, formed at Fairmont, N W.Va., by the junction of the West Fork and Tygart rivers. It flows north, through a valley mark...Concord, cities, United States
(Encyclopedia)Concord kŏngˈkərd, kŏnˈkôrdˌ [key]. 1 city (2020 pop. 125,410), Contra Costa c...Oroville Dam
(Encyclopedia)Oroville Dam, 770 ft (235 m) high and 7,600 ft (2,317 m) long, on the Feather River, N Calif., near the city of Oroville. The highest dam in the United States and the largest unit of the Feather River...Fort Henry, in United States history
(Encyclopedia)Fort Henry, Confederate fortification on the Tennessee River, S of the Ky.-Tenn. line; site of the first major Union victory of the Civil War (Feb. 6, 1862). The fort was attacked and reduced by Union...Klondike
(Encyclopedia)Klondike klŏnˈdīk [key], region of Yukon, NW Canada, just E of the Alaska border. It lies around Klondike River, a small stream that enters the Yukon River from the east at Dawson. The discovery in...Des Moines, city, United States
(Encyclopedia)Des Moines dĭ moinˈ [key], city (2020 pop. 214,133), state capital and seat of Polk co., S ...Illinois, state, United States
(Encyclopedia) CE5 Illinois, midwestern state in the N central United States. It is bordered by Lake Michigan and Indiana (E); Kentucky, across the Ohio River (SE); Missouri and Iowa, across the Mississippi River...Croton Aqueduct
(Encyclopedia)Croton Aqueduct krōˈtən [key], 38 mi (61 km) long, SE N.Y., carrying water from the Croton River basin to New York City; built 1837–42. It was one of the earliest modern aqueducts in the United S...Arlington, county, United States
(Encyclopedia)Arlington, county (2020 pop. 238,643), N Va., across the Potomac River from Washington, D.C. Arlington is a residential and commercial suburb of Washington. Within its boundaries are Arlin...Constitutional Convention
(Encyclopedia)Constitutional Convention, in U.S. history, the 1787 meeting in which the Constitution of the United States was drawn up. The convention at Philadelphia drew up one of the most influential document...Browse by Subject
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