On the inside of both valleys is the mountain Fossalda, and east of the river Fossá is Stangarfell. The next mountain towards the southwest is Skeljafell; after that, Sámsstaðamúli, and finally Búrfell (Þjórsárdal). The valleys join at the south end. West of Fossöldu are the mountains Flóamannafjöll, then Dímon, Selhöfði, Skriðufell and Ásólfsstaðafjall. Under Hagafjall are the capes Bringa and Gaukshöfði.