The subgroup of the Southeastern Walsertal Mountains (Südöstliche Walsertaler Berge) is bounded in the north by the Kleine Walsertal valley. To the east and southeast are the valleys of the Stillach and the Rappenalpenbach. The Üntschen Pass connects the Southeastern Walsertal Mountains with the Northwestern Walsertal Mountains. The Schrofen Pass is the bridge to the central chain of the Allgäu Alps. The highest mountain in the subgroup is the Widderstein, 2,533 m. The range is home to the well-known hiking and skiing area of the Fellhorn and Kanzelwand ski lifts and the famous Mindelheimer Klettersteig. Very popular areas, such as the Fellhorn or in the vicinity of the Mindelheimer Hut, contrast with areas of greater solitude opposite in the mountains northeast of the Fiderescharte col. The Fellhorn is located in the southern flysch zone of the Allgäu Alps. The ridgeline from the Widderstein via the Schafalpenköpfe to the Griesgundkopf consists of main dolomite. The subrange also contains lias, for example, at the Elfer.