Snow cornice Snow cornice A snow cornice or simply cornice (from the Italian cornice meaning "ledge") is an overhanging edge of snow on a ridge or the crest of a mountain and along the sides of gullies. They form by wind blowing snow over sharp terrain breaks (e.g. the crest of the mountain) where it attaches and builds out horizontally. This build-up is most common on the steeper and leeward sides of mountains. Cornices are extremely dangerous and travelling above or below them should be avoided. When a cornice "collapses", it breaks in from the cornice to the top of the peak;
White Oak Ridge-Terrapin Mountain access to hill climbs in the area around Overstreet Creek. Two small areas on both sides of the ridge near the summit of Terrapin Mountain were burned in the Terrapin Mountain Fire of April 2010. Nearby wilderness areas and wildlands recognized as one of Virginia's "Mountain Treasures" by the Wilderness Society are: White Oak Ridge-Terrapin Mountain The area is part of the "Glenwood Cluster". The area is located in the Appalachian Mountains of Southwestern Virginia about 10 miles south of Glasgow, Virginia. The area is bounded by the Blue Ridge Parkway on the northwest and Va 602 (Hunting Camp Creek