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Backbone Mountain
(Encyclopedia)Backbone Mountain, peak, 3,360 ft (1,024 m) high, NW Md., in the Allegheny Mts.; highest elevation in the state.Monroeville
(Encyclopedia)Monroeville, borough (1990 pop. 29,169), Allegheny co., SW Pa., a suburb of Pittsburgh; settled 1810, inc. 1952. It is primarily residential, with a major shopping mall. Monroeville has chemical and n...McKees Rocks
(Encyclopedia)McKees Rocks, borough (1990 pop. 7,691), Allegheny co., SW Pa., an industrial suburb of Pittsburgh, on the Ohio River; settled c.1764, inc. 1892. Manufacturing includes metal and food products, lubric...Clairton
(Encyclopedia)Clairton, city (2020 pop. 6,475), Allegheny co., SW Pa., an industrial suburb of Pittsburgh, on the Monongahela River; settled 1770, inc. 1903. Building...Dormont
(Encyclopedia)Dormont dôrˈmŏnt [key], borough (2020 pop. 8,244), Allegheny co., SW Pa., a residential su...Wilkinsburg
(Encyclopedia)Wilkinsburg, residential borough (1990 pop. 21,080), Allegheny co., SW Pa., a suburb of Pittsburgh; settled c.1800, inc. 1887. There is some light manufacturing, including book publishing and printing...West Mifflin
(Encyclopedia)West Mifflin, borough (1990 pop. 23,644), Allegheny co., SW Pa., a suburb SE of Pittsburgh, on the Monongahela River. Transportation equipment, fabricated metal products, and asphalt are produced in W...Bluefield
(Encyclopedia)Bluefield, city (2020 pop. 9,423), Mercer co., extreme SW W.Va., in the Allegheny Mts. adjacent to Bluefield, Va.; settled 1777, inc. 1889. Lumber, tran...Mogollon Plateau
(Encyclopedia)Mogollon Plateau or Mogollon Mesa mōgōyōnˈ [key], tableland, part of the Colorado Plateau, from 7,000 to 8,000 ft (2,134–2,438 m) high, E central Ariz. It is covered by pine forests, parts of wh...Laurentian Plateau
(Encyclopedia)Laurentian Plateau, Canada: see Canadian Shield. ...Browse by Subject
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