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)
The Appalacians include The White Mountains, The Green Mountains, The Berkshire Hills, The Catskill Mountains, The Allegheny Plateau, The Black Mountains, The Great Smoky Mountains, The Blue Ridge Mountains, and The Cumberland Plateau. The U.S.A. / Canada. 1650 mi (2500 km) range extending from Quebec in Canada to Alabama in the USA. The Appalacians include The White Mountains, The Green Mountains, The Berkshire Hills, The Catskill Mountains, The Allegheny Plateau, The Black Mountains, The Great Smoky Mountains, The Blue Ridge Mountains, and The Cumberland Plateau.