Naturpark Pfyn-Finges - The Illgraben is one of the most active mountain streams in Switzerland with several mudslides per year. These flows of debris can transport several 10,000 tons of rock, stone and earth that are up to 2 m high and flow with speeds of up to 25 km/h.
The Illgraben is one of the most active debri flows in Switzerland with several mudslides per year. These flows of debris can transport well over 10,000 tons of rock, stone and earth that can be up to 2 m high and flow with speeds of up to 25 km/h.
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The Bhutan bridge crosses the Illgraben and is a splendid viewpoint!