Member Login. The following was included in TCTA's 2015-16 Survival Guide, the ultimate reference tool for Texas educators, and is current as of September 2015 but is subject to change.
The Allegheny Mountains run diagonally from the southwest to the northeast with piedmont and coastal plains in the southeast triangle. The Allegheny Front, as it's called, cuts a diagonal line across the state. In the northwest, the plateau falls to the Lake Erie lowlands and, finally, Lake Erie. ( Pennsylvania Close-up)
Appalachian Plateau: In the far southwestern portion of Virginia lies the Appalachia Plateau. This plateau extends into Kentucky as the Cumberland Plateau. Covered with rivers, streams, and forests, the Appalachian Plateau averages about 2,000 feet above sea level.t is the main eastern mountain range of the Appalachian Mountains. South of Roanoke, the Blue Ridge expands into a plateau with valleys, deep ravines, and the highest peaks in Virginia. Mount Rogers, the highest point in Virgina, is located in the Blue Ridge south of Roanoke.