 The boundaries of the main ridge of the Hornbach chain are formed in the north by the Hornbachtal valley with its settlement of Hinterhornbach, in the south by the Lechtal from Holzgau to Vorderhornbach, where it unites with the Hornbachtal.At the junction of the two valleys lies the easternmost mountain of the group, the Klimmspitze.On the main ridge of the Hornbach chain, the highest peaks are the Marchspitze (2,609 m), the Bretterspitze (2,608 m) and the Urbeleskarspitze (2,632 m), which are all in the ten most important summits of the Allgäu Alps.