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;
Snow Mountain (Oxford County, Maine) into Snow Mountain Brook, then into the Cupsuptic River, Cupsuptic Lake, through a series of lakes into the Rapid River and Umbagog Lake, the source of the Androscoggin River. The south side of Snow Mtn. drains into the East Branch of the Cupsuptic River. The northeast and northwest sides of Snow Mtn. drain into Wiggle Brook, then into the Kennebago River and Cupsuptic Lake. Snow Mountain (Oxford County, Maine) Snow Mountain is a mountain located in Oxford County, Maine, about south of the Canada–United States border with Québec. The mountain is sometimes called "Cupsuptic Snow", to distinguish it from another