Wallface Mountain is a summit in New York’s Adirondack High Peaks Wilderness, rising in the Indian Pass country between MacNaughton Mountain and Mount Marshall. Named for the great cliff on its southeastern side, it stands near a major watershed divide: some of its slopes drain through Henderson Lake to the Hudson River and New York Bay, while its northern slopes drain by way of the Ausable, Lake Champlain, the Richelieu, and the Saint Lawrence to the Gulf of Saint Lawrence. Below its cliffs, extensive talus caves include the Touchy Sword of Damocles cave, surveyed to four thousand metres and considered a possible world-record talus cave. Today it is prized for its wild, rugged character.