▁the ▁prominent ▁peak ▁of ▁Bes ler . ▁Its ▁sum mit ▁can ▁be ▁reached ▁via ▁an ▁exposed ▁incl ine ▁or ▁somewhat ▁more ▁easily ▁using ▁a ▁det our ▁from ▁the ▁south . ▁The ▁Bes ler , ▁like ▁many ▁other ▁mountains ▁of ▁this ▁sub range , ▁offers ▁a ▁good ▁view ▁of ▁the ▁main ▁chain ▁of ▁the ▁All g äu ▁Al ps . ▁ ▁North western ▁Wal sert al ▁Mountains ▁ ▁The ▁valley ▁known ▁as ▁the ▁Kle ine ▁Wal sert al ▁forms ▁the ▁southern ▁edge ▁of ▁the ▁North western ▁Wal sert al ▁Mountains ▁( N ord west liche ▁Wal sert aler ▁Ber ge ); ▁the ▁valley ▁running ▁from ▁Ober std orf ▁via ▁Ro hr mo os ▁to ▁S ibr ats g f äll ▁is ▁its ▁northern ▁dem arc ation . ▁The ▁North western ▁and ▁S out he astern ▁Wal sert al ▁Mountains ▁meet ▁at ▁the ▁Ü nt schen ▁Pass . ▁The ▁highest ▁peak ▁is ▁the ▁Ho he ▁If en , ▁. ▁This ▁mountain , ▁together ▁with ▁the ▁neighbour ing ▁Gott es acker ▁plate au ▁is ▁also ▁the ▁most ▁striking ▁feature ▁of ▁this ▁sub range ▁and ▁is ▁formed ▁from ▁rocks ▁of ▁the ▁C ret ace ous , ▁unlike ▁the ▁remaining ▁mountains ▁of ▁the ▁subgroup ▁which ▁are ▁built ▁of ▁fly sch . ▁This ▁is ▁a ▁part ▁of ▁the ▁southern ▁fly sch ▁zone ▁of ▁the ▁All g äu ▁Al ps . ▁The ▁Ho he ▁If en ▁and ▁Gott es acker ▁plate au ▁separate ▁the ▁southern ▁from ▁the ▁northern ▁fly sch ▁zones . ▁Thus ▁the ▁Ho he ▁If en ▁and ▁the