The alpine route connecting Braunwald to Lake Oberblegi and down to Schwanden leads hikers through the weird rock formations of the moranes of the Glaernisch Range. Indeed, the deep-blue lake itself was created by moranes that dammed the melting waters. Rushing mountain streams and beautiful alpine flowers round off the picture.
People who are familiar with stones and rock formations will walk through the mountains as if they were reading a book on geology.
A multifaceted hiking tour: It begins in the heart of Solothurn and takes you through outlying areas to the romantic wilderness of a canyon blessed with a chapel and hermitage, and then on a gentle trail along the foot of the Jurassic Mountains to your destination, Grenchen, the watch city.
Erosion caused the mountain to collapse and the vast, pale yellow and reddish rock basin to form, which becomes bigger every year. From the Grabenrad or the Illhorn (2,716 m) there are "fear inspiring" yet stunning views down into the Rhone valley.