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;
The Snow Hole mark the location of the Snow Hole "summit" at . However, that is a separate mountain summit and not the actual Snow Hole. The posted hiking map at the kiosk to the Taconic Crest Trail at Petersburgh Pass has the location correctly identified. Typically the crevasse has snow at the bottom of it year round. Numerous engravings in the rocks surrounding the Snow Hole include names and dates of visitors dating to the 19th century. The oldest carving found is from the early 19th century. Other examples of persistent snow include the snow patches in Scotland. These areas are associated