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)
Over 50% of the land is still covered by forest land and the only lowlands are in the southeast. The Appalachian Mountains slice through the center of Pennsylvania, with the Allegheny and Pocano Mountains, the state's most significant subranges. The highest point in the state is Mt. Davis, at 3,213 ft. Pine Creek Gorge - often called the Grand Canyon of Pennsylvania - is 50 miles in length, and over 1,000 ft deep in places. Blue Mountain is a 150 mile long ridge that forms part of the the eastern edge of the Appalachian mountain range.