The Widderstein is a massif in the mountains around the valley of Kleinwalsertal, which runs past it to the north. To the northeast of the Großer Widderstein, separated by the Karlstor (2,100 m), is the Kleiner Widderstein (2,236 m). To the east the valley of Gemsteltal divides the flanks of the Widderstein from the massif around the Elferkopf (2,387 m) and the Walser Geißhorn (2,366 m). To the south is the Hochtannberg Pass (1,676 m), where the Allgäu Alps give way to the Lechquellen Mountains. To the west lies the valley of Bärgunttal and the massif around the Heiterberg (2,188 m). In a hollow to the northwest below the side of the summit lies the lake of Hochalpsee (1,970 m).