"FTT:154"^^ . . "A thin, almost knife-like, ridge of rock which is typically formed when two glaciers erode parallel U-shaped valleys. The arte is a thin ridge of rock that is left separating the two valleys. Artes can also form when two glacial cirques erode towards one another, although frequently this results in a saddle-shaped pass, called a col."^^ . "ridge"^^ . "arete"^^ . "ENVO:00000429"^^ . . "ENVO"^^ . .