CIRCUIT ENTRE LOGNE ET BOULOGNE
SAINT-COLOMBAN
A former quartzite quarry that was in operation until 1953, this walk will give you a chance to admire the beauty of the rock face
The route is pleasant, dotted with sunken lanes and crossing 2 valleys where "La Marzelle" and "Le Fossé Chalon" flow, two streams
Start: Salle polyvalente Jean-Louis Ripaud in Mervent
Marking: yellow with two yellow dots
Ascent: 97 m