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The starting point is located at Pont des Pierre on the D14a between Montanges and Confort, on the right just after crossing the bridge. Parking is available.
(S/E) Follow the sign for Lancrans, then cross the road.
(1) Take thethird path on the left (thefirst returns to the starting point, thesecond leads to a cul-de-sac by the river). The path runs horizontally, then descends steeply before running along the bottom of the cliffs and joining the banks of the Valserine river.
The path then continues without any significant elevation change, following the riverbed at varying distances (caution: there are a few relatively narrow passages along the edge of ravines). After a while, the path climbs slightly to join a carriage road.
(2). Follow the path on the left, which continues without any significant elevation changes. After a while, you will reach a service road leading to the Sous-Roche hydroelectric plant below.
(3) Turn right towards Pont du Dragon for about 1 km. At the Maison du Dragon, turn left to reach the bridge, which is not far away.
(4) Cross the bridge and head towards Domplomb (yellow markings). The path runs alongside the river, then climbs upwards. Along the way, you will pass through a short tunnel (known as the Smugglers' Tunnel) carved into the rock.
Further up, turn right towards the Domplomb Tunnel at a fork in the path. Not far away, you will come to another fork: you are now on the old Bellegarde-sur-Valserine to Chézery tramway line.
(5) The 77-metre-long Domplomb Tunnel is visible on the left: go through it. On the other side, cross the D14 road and take a path on the left, following the direction of Lancrans via Voie du Tram (the direction you should follow until you return). The path then winds to the right and left for a short while until you reach a clearly marked fork.
(6) Turn right, then less than 300 metres later, turn left at another fork (following the Lancrans par la Voie du Tram route). After a water treatment plant, the path joins the Volférine river: turn right at a fork (no sign) and follow the riverbed.
At an old pillar, continue straight ahead until you reach the clearly visible waterfall. Back at the pillar, take the small wooden bridge on the right, then continue to the village of Champfromier.
(7) Turn right onto the bridge of the old tramway line, then left onto the Pont d'Enfer. Turn left again to return to the village. Continue straight ahead along the Chemin de Niezelet to the left of the Foyer Rural (note: there are no signs or visible markings).
At the technical centre, continue straight ahead to the right of the building, then turn left towards a signpost.
(8) Keep to the right along the fence next to two houses, then take a path accessible via a short staircase (no sign). The route (marked in yellow) is then clearly visible. You will arrive at an open space with a statue of the Virgin Mary (beautiful view of the village); continue straight ahead until you reach a fork near a campsite.
(9) Turn left along the campsite and continue on the path on the left. At the three-way junction, continue to the right, following the route (Lancrans via Voie du Tram).
(10) After a short while, the path joins a carriage road: continue to the right towards Lancrans and Montanges for about 1.5 km until you reach the D14 in Montanges.
(11) Continue straight ahead and less than 100 m later, take the left fork at the junction, following the signs for Lancrans.
(12) Shortly afterwards, you will pass the old Montanges tramway station. Immediately afterwards, you will reach a road (D14a): continue straight ahead for about 100 metres until you reach a fork and turn left onto Chemin de Sous la Ville, following the sign (note that it is not very visible in this direction).
The path joins another path below: continue straight ahead, following the sign for Lancrans (and the yellow markings).
(13) Further down, stay slightly above the road, then continue straight ahead into the woods. Not far away, the road joins the Pont des Pierres: cross it and return to the starting point (S/E).
Visorando Member
Moderate 
Tourist office
Very difficult 
Easy 
