Langidalur belongs to the Merkurrani Area, north of River Krossa at the eastern slopes of Mt Valahnukur (458m).  This well vegatated valley has rather a wide opening, where the Iceland Touring Association built a house to accommodate its members and other travellers, and named it after one of its executive managers, Skagfjordsskali.  Between the valleys Langidalur and Husadalur is a narrow ridge.  From the centrally located Langidalur Valley lie numerous hiking trails in different directions.