Fig.31 - The impressive debris flow site "Illgraben" high above the Rhone Valley. It is the result of a landslide
in the 14th century and the effects of erosion. The Illgraben funnel is made of quartzite, calcareous deposits and dolomite.
Nikon Z6, Nikon 19mm f/4E PC tilt-shift lens (July, 2021).