Chall Pass
Chall Pass is a mountain pass in the Jura Mountains on the border of the cantons of Solothurn and Basel-Country in Switzerland. The pass road links Metzerlen and Röschenz or Laufen on the List of [Swiss main roads|Swiss common main road] number 274. The pass got his name from the mountain Challhöchi; chall is Swiss German for the German word kahl ; Höchi Swiss German for Höhe.