Allegheny Plateau


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Allegheny Plateau,

dissected plateau, western part of the Appalachian Mts., extending c.500 mi (800 km) SW from N Pa. to SW Va., rising to c.4,860 ft (1,480 m) at Spruce Knob, the highest peak in West Virginia. The E Allegheny Plateau, known as the Allegheny Mountains or the Alleghenies, has a steep eastward-facing escarpment often called the Allegheny Front (c.1,500–1,600 ft/460–490 m high) and is more rugged than the western portion. The plateau, formed by the folding of sedimentary rocks, has been subsequently reduced by erosion. The mountains, rich in coal and timber, also contain iron ore, petroleum, and natural gas.
References in periodicals archive ?
This cascading stream, sometimes called Beech Bottom Run, is among the most picturesque to grace the remote, rugged depths of north-central Pennsylvania's Allegheny Plateau.
As an outflow of Cazenovia Lake, Chittenango Creek descends the north margin of the Allegheny Plateau through a narrow valley, which constricts into a gorge where the falls are today.
While fracking goes on all across the country, the Marcellus Shale, a layer of sedimentary bedding under the Allegheny plateau that spans nine northeastern and Mid-Atlantic States, has become America's primary fracking grounds.
The text includes an introductory overview of key geologic concepts and the geographic history of Maryland, Delaware, and Washington, DC; sections covering the Allegheny Plateau, Valley and Ridge and Blue Ridge Provinces, Piedmont Province, and Coastal Plain; and a glossary of terms.
Kleinman's work started in New York's Allegheny Plateau (see map), a forested expanse broken up by small dairy farms, where the University Park team oversees activities in the Town Brook Watershed as part of the Conservation Effects Assessment Project (see story on page 10).
Landscape features such as the Appalachian Mountains and the Allegheny Plateau lend to Pennsylvania's different species compositions and forest types (McWilliams et al.
Outside Pennsylvania, not many people know that the Keystone State has its own "Grand Canyon," the 1,000-foot-deep Pine Creek Gorge cutting 50 miles through the Allegheny Plateau.
As legend would have it, Johnny Appleseed lit out for the Allegheny Plateau 200 years ago to stake a claim and snag his share of the American Dream.
Headwater riparian habitat is abundant in the nonglaciated Allegheny Plateau of northwestern Pennsylvania.
This stream, which originates in the foothills of the Allegheny Plateau in the southwestern corner of New York State, is one of the most biologically diverse aquatic systems in the northeast.
Texturally, most tills become sandier and less clay rich as they are traced onto the Allegheny Plateau.
From our magnificent mountain and wilderness regions to the Great Lakes, from the forests and highlands of the Allegheny plateau to wonderful urban waterfront parks, New York is endowed with an incredible diversity of open space.

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