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Naugatuck, river, United States

(Encyclopedia)Naugatuck, river, 65 mi (105 km) long, rising in NW Conn. and flowing S, past Waterbury, to the Housatonic River at Derby. It furnishes water power for the remaining industrial plants along its shores...

Aurora, cities, United States

(Encyclopedia)Aurora ərôrˈə, ô– [key]. 1 City (2020 pop. 386,261), Adams and Arapahoe counties, N central Colo., a growing suburb on the east side of Denver; inc. 1903. Founded d...

Odessa, city, United States

(Encyclopedia)Odessa ōdĕsˈə [key], city (1990 pop. 89,699), seat of Ector co., W Tex.; founded 1881, inc. 1927. Great oil deposits just to the south changed Odessa from a small ranch town into a large and growi...

Ogden, city, United States

(Encyclopedia)Ogden, city (1990 pop. 63,909), seat of Weber co., N Utah, at the confluence of the Ogden and Weber rivers; inc. 1851. Aerospace industries and Hill Air Force Base are the major employers. There is we...

Ogden, river, United States

(Encyclopedia)Ogden, river, 35 mi (56 km) long, rising in the Wasatch Range in N Utah, and flowing SW to join the Weber River at Ogden. The river has been used for irrigation for nearly a century. The Ogden–Brigh...

Ohio, state, United States

(Encyclopedia)CE5 Ohio, midwestern state in the Great Lakes region of the United States. It is bordered by Pennsylvania (NE), West Virginia (SE) and Kentucky (S) across the Ohio River, Indiana (W), and Michigan ...

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...

Ontario, city, United States

(Encyclopedia)Ontario, city (1990 pop. 133,179), San Bernardino co., S Calif., near Los Angeles, in a region of vineyards; inc. 1891. Manufactures include aircraft and aircraft parts, aerospace vehicle parts, sport...

Orange, cities, United States

(Encyclopedia)Orange. 1 City (1990 pop. 110,658), Orange co., S Calif.; inc. 1888. Citrus fruits and nuts are packed, processed, and shipped; rubber and plastic products, electronic components, aircraft parts, and ...

Oregon, state, United States

(Encyclopedia)CE5 Oregon ŏrˈĭgən, –gŏn [key], state in the Pacific Northwest of the United States. It is bordered by Washington, largely across the Columbia River (N), Idaho, partially across the Snake Ri...