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The Allegheny Plateau (/ ˌ æ l ɪ ˈ ɡ eɪ n i / AL-ig-AY-nee) is a large dissected plateau area of the Appalachian Mountains in western and central New York, northern and western Pennsylvania, northern and western West Virginia, and eastern Ohio. It is divided into the unglaciated Allegheny Plateau and the glaciated Allegheny Plateau.
A 1775 map of the Allegheny Plateau and Mountain Range. Trans-Allegheny travel had been facilitated when a military trail—Braddock Road—was blazed and opened by the Ohio Company in 1751. (It followed an earlier Indian and pioneer trail known as Nemacolin's Path.)
The Allegheny Front seen in the right of this photograph Blue Knob in Pennsylvania and its wintry valley below This list of ridges and summits of the Allegheny Mountains identifies geographic elevations for about 500 miles (800 km) from north central Pennsylvania , through eastern West Virginia and western Maryland , to western Virginia in the ...
This is a list of United States National Parks by elevation. Most of America's national parks are located in mountainous areas. ... Glaciated Allegheny Plateau: 1,164 ...
The first cartographic appearance of Apalchen is on Diego Gutiérrez's map of 1562; the first use for the mountain range is the map of Jacques le Moyne de Morgues in 1565. [ 12 ] Diego Gutiérrez's 1562 map of the Western Hemisphere showing the first known use of a variation of the place name Appalachia ("Apalchen") from his map, Americae sive ...
From Kentucky the elevation drops down to 2000 feet in northwestern Alabama. The plateau has a slight slant towards the northwest, making it higher on the eastern side. [2] A large portion of the plateau is a coalfield, which was formed approximately 320 million years ago during the Pennsylvanian Age. [3]
These plateaus, such as the Allegheny Plateau, are considered provinces of the Appalachian Highlands and the mountains assigned to them are instead considered pieces of dissected plateaus. [ 4 ] Additionally, subranges and ridges of subranges (Such as the Yew Mountains ) are inconsistently related to the Appalachian Mountain Range.
Other high points along the front include the Dolly Sods Wilderness in West Virginia, a broad, rocky plateau at an elevation of about 4,000 feet (1,200 m); Dan's Rock on Dans Mountain in Maryland at 2,895 feet (882 m); and Blue Knob in northern Bedford County, Pennsylvania, with an elevation greater than 3,120 feet (950 m).