Unglaciated Allegheny Plateau

Map of the Allegheny Plateau. The gray line differentiates the glaciated (northern) and unglaciated (southern) sections of the plateau. The unglaciated plateau extends southwestward into eastern Kentucky and Tennessee, where it is called the Cumberland 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. This is the part of the Allegheny Plateau that lies outside the continental glaciation of the ice age.


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