Sardona viewpoint

The Sardona Tectonic Arena provides unique insights into the history of the formation of the Alpine mountains and valleys. Along the line visible from afar, the Glarus Thrust, also known as the "magic line", 250-300 million year old rocks were pushed onto much younger rocks, some of which were "only" 35-50 million years old. This happened 10-20 million years ago, far below the surface of the earth at that time.