What is mountains from which to yodel?

Yodeling is a traditional form of singing that was developed in the mountains regions of Europe, particularly in the Alps. The unique acoustics of the mountain valleys provide an echo that enhances the sound of the yodeler's voice.

The Swiss Alps are particularly famous for yodeling, with the small village of Appenzell in eastern Switzerland being considered the center of yodeling culture.

Other regions known for yodeling include the Austrian Alps, the Bavarian region of Germany, and the Italian Alps.

In order to yodel, it is important to have good breath control and the ability to sing in a falsetto voice. Yodeling was originally used as a way for mountain herdsmen to communicate with each other across long distances, but has since become a popular form of music and entertainment.