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)
They run from Tennessee to North Carolina. The Blue Ridge mountains are the backbone of the system. They extend from Georgia to Pennsylvania. In the Appalachian mountains there is Mt. Mitchell. This is the highest mountain on the eastern coast. The name Appalachian comes from the Apalachee Indians.