Erratic block out of Granite in Dornbirn, hamlet Gütle, in front of the Rappenlochschlucht (Gorge), at the confluence of the Ebniterache (Dornbirner Ach) with the Gunzenach / Kobelach (rivers). The granite boulder is the oldest stone in Dornbirn and is said to be 150 million years old.
<a href="//commons.wikimedia.org/wiki/User:Asurnipal" title="User:Asurnipal">Asurnipal</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>