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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.
The Unglaciated Allegheny Plateau is located in an arc around southeastern Ohio, West Virginia, into western Pennsylvania and a small portion of southwestern New York State. This area is a dissected plateau , characterized by sandstone , shale , and many coal seams.
In general, the glaciated lies to the north and west of the unglaciated, and forms an arc in northeastern to southeastern Ohio lying between the glacial till plains and the Unglaciated Allegheny Plateau. The Glaciated Allegheny Plateau extends into a belt of southern New York State and the central Susquehanna River basin. A small area of the ...
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.)
Appalachian Ohio, shaded in green, shown within Appalachia. Appalachian Ohio is a bioregion and political unit in the southeastern part of the U.S. state of Ohio, characterized by the western foothills of the Appalachian Mountains and the Appalachian Plateau. The Appalachian Regional Commission defines the region as consisting of thirty-two ...
The Allegheny Front forms part of the Appalachian Structural Front, separating the Appalachian Plateau from the Appalachians' Ridge and Valley Province. [1] The various other escarpments along this structural feature include the Catskill Escarpment to the northeast and the Cumberland Escarpment to the southwest. [1]
Ohio (/ oʊ ˈ h aɪ. oʊ / ⓘ oh-HY-oh) [14] is a state in the Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest. Of the 50 U.S. states, it is the 34th-largest by area.
Athens County is located in the Unglaciated Allegheny Plateau region of Ohio. It features steep, rugged hills, with typical relief of 150 to 400 feet, deeply dissected by stream valleys, many of them remnant from the ancient Teays River drainage system.