 It is one of the three municipalities in the Canal Valley (Val Canale) of the Fella River, between Tarvisio in the east and Pontebba in the west.In the north, the crest of the Carnic Alps forms the border with the Austrian state of Carinthia and the municipalities of Hermagor-Pressegger See, Sankt Stefan im Gailtal, Feistritz an der Gail, and Hohenthurn.In the south, the Jôf di Montasio massif of the Julian Alps separates it from the Italian municipalities of Chiusaforte and Dogna.