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At the Hauteville Lompnès exit sign, heading towards Cormaranche en Bugey and Belley, stop on the left, where an old section of road can be used as a car park.
(S/E) Still heading towards Cormaranche, after 50 metres, take the path on the left that leads into the forest and follows the Mélogne stream.
Please be careful, as from this point onwards it is a mountain bike trail where cyclists come from the opposite direction.
Follow this path for about 1 km until you cross the stream, which is often dry. Continue along the path on the right for 500 m.
When you reach the Mazière road, turn left, then take the path that branches off 10 metres to the right of the road. Follow this path for 350 metres.
(1) Continue along the track on the left (red mountain bike enduro sign behind you) with a fairly steep climb for 100 m.
At the top, turn right onto the path for 200 metres, then turn left. The start is steep, but the path becomes reasonable, even flat, after 50 metres. Continue for 900 metres.
(2) Leave the blue mountain bike trail on your right.
(3) At the end of the 900 m, take a tarmac path on the left and go up to the crossroads, then take the path on the right, which you will follow for 200 m. A small variation: follow the mountain bike trail on the left for 60 m, then turn right. Once you reach the road, turn left.
(4) Then head towards Golet Marmier (wooden sign on the right): this is a hiking trail, which is less steep, but there are still mountain bikes.
(5) At Golet Marmier, climb and continue along the mountain bike trail for 900 m towards Planachat.
Be careful, as the path follows the top of a cliff.
(6) At Planachat, take advantage of the orientation table and the beautiful viewpoint over the Guichard farm. Continue to the right for 650 m to the Col de la Clye.
(7) Take the hairpin bend to the left towards Trou de la Marmite and Golet Marmier. Continue for 1,400 m to reach a crossroads of trails in a hairpin bend below Golet Marmier.
(8) To continue, descend towards the Guichard farm (wooden sign).
Caution: steep descent on a rutted logging road for 200 metres. Towards the end, take a more comfortable tractor track on the left.
When you reach a gravel path, follow it to the left for 800 m.
(9) Leave the Guichard farm road (wooden sign) on your right and continue straight ahead towards the RD9. Once you reach the main road, watch out for cars! Quickly turn left to reach Trou de la Marmite, a sight worth seeing. You can go down to the bottom of the waterfall via a path by taking the road on the left for about 200 m, to the left of the road opposite the gravel pit to the left of a large rock. This makes the route longer and requires you to climb back up to continue, but it's worth it for the spectacular view.
(10) Go back up the road for 300 m towards the Notre-Dame de Mazières Chapel, which is also worth seeing.
(11) At the entrance to the car park, take the black mountain bike trail on the left. Follow the path for 500 m. You will arrive at the Cornillon viewpoint car park.
(12) Turn left to access this viewpoint and enjoy the view of the plateau and the village of Hauteville Lompnès.
(13) Return to the crossroads at the previous car park.
(12) Leave the car park, cross the Route du Vely and climb up the scree left by mountain bikes (very steep slope for the first ten metres or so). Continue climbing, but it gets easier.
After 450 metres, you will reach thesecond viewpoint, Haïea d'Amont, with a view limited by the mountain opposite.
(14) Continue north for 450 metres to the orientation table and the holy grail: the Mont Blanc massif, with a 360° view of the Hauteville plateau and Valromey.
(15) Begin the descent. There are several options. The one suggested here is the least steep, but it is possible to descend via the ski slopes and join the Col de la Croix de l'Orme path below.
Follow the path to the left until you reach the crossroads and see below for the next steps.
Go around the grove of trees, take the path on the right for 200 m, then continue to the right for about 70 m.
(16) Take the gravel path on the left and follow it for 850 m. At the T-junction, take the Col de la Croix de l'Orme path on the left for 1100 m.
At the next crossroads, take the unpaved path on the left for 1,600 m.
(17) At the crossroads, turn right and continue for 300 metres. On the Chemin du Tocanier, turn left and continue for 170 metres until you reach the Route de Mangini.
(18) Cross the road and take the FFC mountain bike trail. It descends for 500 m and joins the starting route on the right. The descent is steep and slippery, especially if the ground is wet.
Reach the finish line 800 m away (S/E).
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Visorando member
Moderate 
Easy 
