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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...

(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, 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...

Olympia, city, United States

(Encyclopedia)Olympia, city (1990 pop. 33,840), state capital, and seat of Thurston co., W Wash., at the southern tip of Puget Sound, on Budd Inlet; inc. 1859. A port of entry, it ships lumber products and agricult...

Oneida, city, United States

(Encyclopedia)Oneida ōnīˈdə [key], city (1990 pop. 10,850), Madison co., central N.Y.; inc. 1901. Tableware was long the best-known product, and some is still manufactured in neighboring Sherrill, N.Y. Machine ...

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...

Paradise, town, United States

(Encyclopedia)Paradise, town (1990 pop. 25,406), Butte co., N central Calif., located along a broad ridge in the foothills of the Sierra Nevada range, inc. 1979. It is mainly residential with a growing population. ...

Paris, city, United States

(Encyclopedia)Paris pârˈĭs [key], city (1990 pop. 24,699), seat of Lamar co., E Tex., in the Red River valley; settled 1824. It is a processing center for the rich farms of the blackland region, which produces c...