Sideling Hill
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Sideling Hill, also Side Long Hill, is a long, steep, narrow mountain ridge in the Ridge-and-Valley physiographic province of the Appalachian Mountains, located in Washington County in western Maryland and adjacent West Virginia and Pennsylvania, USA. The highest point on the ridge is Fisher Point, at 2,310 feet (700 m) in Fulton County, Pennsylvania.
Interstate 68 road cut in Sideling Hill in Western Maryland
Oblique air photo of Sideling Hill, facing north, with the I-68 road cut near center, and the path of the National Road (Scenic US 40) visible to the south
East Broad Top Railroad Tunnel at Sideling Hill, south portal
The western portal of the now-abandoned Sideling Hill Tunnel, along the former mainline of the Pennsylvania Turnpike
Ridge-and-Valley Appalachians
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The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian Highlands division. The physiographic province is divided into three sections: the Hudson Valley, the Central, and the Tennessee.
Valley and Ridge province as part of the Appalachian Highlands division, based on the U.S. Geological Survery physiographic classification
Valley and Ridge province of the Appalachian Highlands and its three physiographic sections: the Hudson, the Central, and the Tennessee Rivers
An aerial view of Bedford County, Pennsylvania, showing (from center to right): Wills, Evitts, and Tussey Mountains in December 2006
Ridges and valleys near Norton, Virginia in Wise County, Virginia