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)
Pennsylvania was the second state, after Delaware, to ratify the U.S. Constitution. Pennsylvania's landscape is dominated by the Appalachian Mountains, an eroded mountain chain in eastern North America. Mount Davis in the Forbes State Forest is with 3,213 ft (979 m) the highest point in the Quaker State.