The Großer Krottenkopf is the highest mountain in the Allgäu Alps of Austria. It is 2,656 m (AA) and is part of a side branch of the Hornbach chain , which branches off the main chain of the Allgäu Alps and runs for about 15 km eastwards.

Bases and ascent routes

• From Oberstdorf (815 m above NN), the Kemptner Hut at 1,844 m above NN summit can be reached in four hours via the Spielmannsau using the E5 European long distance path.
• The Kemptner Hut is the northern base for an ascent on the Krottenkopf using the normal route (easiest ascent). The path runs from the hut initially southwards, then swings east to theOberer Mädelejoch (2,033 m above sea level (AA)) on the border between Germany and Austria. It then runs over scree eastwards to the col of Krottenkopfscharte (2,350 m above sea level (AA)) and, following the numerous red dots, requires an easy climb (UIAA grade I) over stone-covered slabs to the summit in just under three hours. Sure-footedness and, in the summit region, a head for heights are required.
• Another path leads from Holzgau (1,103 m above sea level (AA)) in the upper Lech valley to the Großer Krottenkopf.