Chall Pass

Chall Pass (or Challpass) (el. 747 m.) 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 Swiss common main road number 274. The pass got his name from the mountain "Challhöchi"; "chall" is swiss german for the german word "kahl" (in the meaning of "bare", without forest); "Höchi" swiss german for "Höhe" (height).
Chall Pass on the official map of the Swiss Confederacy