Fig. 18From: The Flims rock avalanche: structure and consequencesIncision of the Ruinaulta gorge. A Ancestral valley floor (black arrow) at Chrummwag located 40 m above the modern Vorderrhein. B Ancestral riverbed (black arrow) perched on the cliffs of Ruinas dallas Foppas. C Ancestral riverbed perched on the cliffs of Islahalda. Pebbles include rounded cobbles of crystalline basement. Photos A. PfiffnerBack to article page