Bert

Pass in front of the old slate quarries (Natura 2000 site). To see, on the circuit, the highest of the 7 Viaducts, a remarkable structure built in 1872. It has 8 arches of 25 m for a length of 285 m and a height of 58 m.

Practical information

• height difference: 270m
• Markings: Yellow
• Distance: 9km
• Type of route: Pedestrian. Mountain biking