How long is the extension of the blue ridge mountain range that Nichol's Gap Road was built over?
South Mountain (Maryland and Pennsylvania) South Mountain is the northern extension of the Blue Ridge Mountain range in Maryland and Pennsylvania. From the Potomac River near Knoxville, Maryland, in the south, to Dillsburg, Pennsylvania, in the north, the 70 mi range separates the Hagerstown and Cumberland valleys from the Piedmont regions of the two states. The Appalachian National Scenic Trail follows the crest of the mountain through Maryland and a portion of Pennsylvania.
Wapack Range The Wapack Range, sometimes referred to as the Pack Monadnock Range, is a 20 mi range of mountains in south-central New Hampshire and adjacent Massachusetts, in the northeastern United States. The range is considered very scenic and rugged with many bare summits and ledges ranging from 1800 to . The 22 mi Wapack Trail, one of the oldest interstate hiking trails in the United States, traverses it. The Wapack Range is also the northern terminus of the 90 mi Midstate Trail.