. ▁The ▁F ell horn ▁is ▁located ▁in ▁the ▁southern ▁fly sch ▁zone ▁of ▁the ▁All g äu ▁Al ps . ▁The ▁rid g eline ▁from ▁the ▁W id der stein ▁via ▁the ▁Sch af al pen kö p fe ▁to ▁the ▁G ries g und k opf ▁consists ▁of ▁main ▁dol om ite . ▁The ▁sub range ▁also ▁contains ▁li as , ▁for ▁example , ▁at ▁the ▁El fer . ▁ ▁Main ▁Ch ain ▁ ▁The ▁sub - group ▁of ▁the ▁Main ▁Ch ain ▁of ▁the ▁All g äu ▁Al ps ▁( Z ent ral er ▁Haupt k amm ) ▁extends ▁from ▁the ▁Sch ro fen ▁Pass ▁to ▁the ▁M ä de le jo ch ▁s addle ▁and ▁forms ▁the ▁centre ▁of ▁the ▁All g äu ▁Al ps . ▁The ▁famous ▁Heil br onn ▁Way ▁runs ▁along ▁here . ▁Fam ous ▁pe aks ▁such ▁as ▁the ▁tri um vir ate ▁of ▁the ▁Tre tt ach sp it ze , ▁M ä de leg abel ▁and ▁Hoch f rott sp it ze ▁or ▁H oh es ▁L icht ▁( the ▁highest ▁peak ▁of ▁the ▁subgroup ▁at ▁) ▁are ▁located ▁in ▁this ▁sub - range . ▁However , ▁there ▁are ▁also ▁isolated ▁areas ▁such ▁as ▁the ▁H imm el sch ro fen ▁r idge ▁and ▁Pe isch el ▁Group ▁which ▁lies ▁to ▁the ▁south ▁alongside ▁the ▁Le ch ▁Valley . ▁The ▁main ▁pe aks ▁are ▁formed ▁from ▁main ▁dol om ite . ▁This ▁so - called ▁Le cht al ▁N appe ▁( Le cht