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;
Mill Creek Mountain Mill Creek Mountain Mill Creek Mountain is a continuous mountain ridge that runs northeast through Hampshire and Hardy counties in the Eastern Panhandle region of the U.S. state of West Virginia. Rising to its greatest elevation of at High Knob, Mill Creek is a folded mountain ridge, belonging to the Ridge-and-Valley Appalachians. Mill Creek Mountain forms the western edge of the South Branch Potomac River Valley and is named for Mill Creek that carves through it at Mechanicsburg Gap allowing the Northwestern Turnpike (U.S. Route 50) to pass through as well. Along with Sawmill Ridge (1,716 feet/523 m), Mill Creek