The bottom of the river Isorno (Rio Isorno Inferiore), although very short, is perhaps the most evocative section in the whole of Ossola Valley. It has only six descents, but, being dug into an imposing and very narrow gorge, they make for a truly spectacular canyoning experience. While not a very demanding descent, make sure to always check that there isn’t too much water flow.
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Municipality: Montecrestese, Ossola Valley
Bibliography: Canyoning Nord Italia – Pascal van Duin – Edizioni TopCanyon 2009
Website: www.cicarudeclan.com – www.openspeleo.org
Maps: C.N. Switzerland 1:50000 Valle Antigorio 275
Altitude on Entry: 920 metres above sea level
Altitude on Exit: 460 metres above sea level
Descent: 460 metres
Length: 3000 metres
Biggest Vertical Descent: 30 metres
Number of Drops: 10
Period: June – September