On the north side of the Aggenstein, classic Allgaeu climbing is required. The rock here is different from that of the Tannheimer Berge and resembles - especially in the "Morbus Fluttertermann" - more the main dolomite of the Allgäuer Hauptkamm.
A steep grassy slope embedded in the wall, the "Lange Strich", separates the formerly notorious (lower) north-east wall from the somewhat more comfortable north wall of the summit structure above. One of the two northern access routes to the Bad Kissinger Hütte runs over the "Lange Strich".
