Blue Mountain (Pennsylvania)
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Blue Mountain, Blue Mountain Ridge, or the Blue Mountains of Pennsylvania, is a ridge of the Appalachian Mountains in eastern Pennsylvania. Forming the southern and eastern edge of the Ridge-and-Valle
The "Great Wall" of Blue Mountain in Pennsylvania in February 2008
Blue Mountain in Moore Township in the Lehigh Valley region of eastern Pennsylvania in February 2014
Blue Mountain Tunnel on Interstate 76 in May 2006
Great Appalachian Valley
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The Great Appalachian Valley, also called The Great Valley or Great Valley Region, is one of the major landform features of eastern North America. It is a gigantic trough, including a chain of valley
Blue Mountain (Pennsylvania)
…geographical and cultural regions. To the south of the Susquehanna River gap in the south-central part of the state is the Cumberland Valley, part of the Great Appalachian Valley; to its northwest side are the southern reaches of the Susquehanna Valley with picturesque streams channeling travel corridors deep into and over the…
Bald Eagle State Forest in Union County, Pennsylvania