Gorges du Sierroz, Natural canyon in Grésy-sur-Aix, France.
The Sierroz river has carved an 800-meter canyon between Mont Revard and Lake Bourget, with walls reaching heights of 20 meters.
The site contained 14 sawmills, 39 flour mills, 9 oil mills, 18 threshing machines, and a forge during the early 19th century.
The gorges earned the status of protected natural site in 1910, becoming the first location in Savoie to receive this designation.
A maintained path with parking facilities allows visitors to walk along the canyon banks and cross two bridges attached to the rock walls.
The canyon walls display distinct geological formations shaped by water erosion, including features known as holy water fonts and human head.
Location: Savoie
Location: Grésy-sur-Aix
Website: https://gorgesdusierroz.fr
GPS coordinates: 45.71942,5.92043
Latest update: September 25, 2025 11:48
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