Coordinates: ISN93 504930.39 E, 535171.14 N
Lat: 0°, Lon: 0°
Austurdalur, a 50 km long valley, narrow but fairly grassy, between high mountains. The river Eystri–Jökulsá flows down it, often in a deep gorge, difficult to cross. There is now a bridge between Merkigil and Ábær. The valley used to have a large number of inhabitants, now there is only one farm there.