Geography
The ridge of Blue Mountain runs for 150 miles (240 km) through Pennsylvania, reaching an elevation of 2,270 feet (690 m) above sea level just north of the Pennsylvania Turnpike, near the borough of Newburg. Most of the ridgecrest, however, only reaches between 1,400 feet (430 m) and 1,700 feet (520 m) in elevation. The mountain's width varies from 1 mile (1.6 km) to 3 miles (4.8 km).
The southwestern end of the mountain is at Big Gap, west of Shippensburg. (The mountain ridge continues to the southwest towards Maryland under the name of Broad Mountain.) The northeastern end of the mountain is at the Delaware Water Gap on the New Jersey border. Mount Minsi, forms the promontory overlooking the Delaware River. The ridge of Blue Mountain continues northeast into New Jersey as the Kittatinny Mountains.
Blue Mountain marks the boundary between the Great Appalachian Valley and the main Ridge-and-valley Appalachians.
Read more about this topic: Blue Mountain (Pennsylvania)
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