South-exposed string connecting Cuchon, Petite Autane, Tete du Seigneur and Grand Autane (2758 m) from the Champsaur. 25 km, 1800 m of gain, airy ridge, scree, June snowfields, a few easy climbing moves. Committed, elegant, and totally deserted if you come early in the season.
Early June 2025. Even though spring has done a solid job, the mountain still holds plenty of snow at altitude. Committed routes are scarce, and finding a meaningful summit without wrestling too much snow is nearly a challenge in itself. Ski tourers are still at work on the north-facing slopes, proof that we are not in summer yet, despite what the calendar says.
Rummaging through the maps around Ancelle, I spot a promising string: Cuchon, Petite Autane, Tete du Seigneur, Grand Autane. An almost perfect line, facing due south, which should help me avoid the bulk of the snow. From the valley, the Cuchon and the Petite Autane are clearly visible, dry. The Grand Autane, on the other hand, keeps a lower profile. Invisible from here, but intriguing.
This time I am not in wild bivouac mode. I am staying at the Camping des Auches in Ancelle. A quiet little spot, perfect for a comfortable break after several days of unstable weather. On site, I chat with the owners, lovely and passionate. Sir is himself a seasoned hiker, and he confirms that the route, although sustained, should be doable thanks to its exposure. I still pack ice axe and crampons. The mountain does not forgive.
Cuchon and Petite Autane, warm-up


In the early morning, under a light rain, I start the climb up the Cuchon. Nothing very technical, but the weather is still fickle. The forecast promises improvement during the day, I take the gamble. Once this first summit is behind me, things get serious: the climb toward the Petite Autane (2519 m) is steep, rugged, sometimes airy. The void invites itself in, and it will not leave us.
On the ridge, things get serious


From the ridge I finally spot the Grand Autane. Majestic. Distant. High. And still well snowed on its north face. To reach it, you have to work your way along a sometimes sharp ridge, between scree, rock and snowfields. In places the “path” is no longer really a path, you have to follow cairns, improvise, scramble, put the hands down. I am probably one of the first to cross this season, the tracks are absent, and I have the mountain to myself.
Grand Autane, the solitary summit


As I climb, the landscape unfolds. At the top of the Grand Autane (2758 m), silence, vastness. The view fans out over the Devoluy, the Ecrins, the Champsaur. I feel like I am on an alpine route at 3500 m, yet we are barely at 2700. The game was well worth the candle. A grandiose hike, spectacular, demanding, exactly how I love them.
Descent along the Autanes ridge and the Col de Rouanette


For the descent I continue along the Autanes ridge. Less committing than the climb, but still airy. At the Col de Rouanette, a big snowfield awaits me. What a pleasure to cut the first track, to feel that still-cold snow underfoot. Then come the alpine pasture, the greenery, the gradual return to the valley.
Icing on the cake: I did not cross a single soul. Alone on this ridge line, suspended above the valleys. One of those days that leaves a mark, where everything lines up. A committed, wild, elegant hike, the kind to do once in a lifetime.
Anecdote, the Moure du Piurc
Below the Petite Autane, a striking rock emerges from the ground: “la Moure du Piurc”, literally “the pig’s snout” in local dialect. A name as vivid as it is precise, handed down by the elders of the Champsaur. You like to think that here, even the stones tell stories.
Practical info
1800 m of gain, 25 km, plan on 8 to 9 hours depending on your pace on the ridge. This is not a hike for beginners or even for a hurried intermediate: there are three cumulative technical sections (sharp ridge, easy climbing moves, unstable scree) that demand terrain reading and a cool head.
For conditions, a phone call to the Champsaur tourist office will give you a general picture, but the best intel comes from locals, lodges and the local campsite. If you are unsure about the commitment, Cuchon alone already makes a fine outing on its own, without the exposed part.
Practical info
Starting point
From Gap, drive to Ancelle via the D13/D113. Go through the village then take the mountain road southeast for about 5 km up to the Chemin de Rouanne parking (alt. 1430 m). I was staying at the Camping des Auches the night before: warm welcome, owners are hikers themselves, a good option if you want a comfortable break before the big gain.
GPX track
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Sign in to downloadTourist office (current conditions)
Office de Tourisme du Champsaur, Ancelle
Place de l'Eglise, 05260 Ancelle
Garmin track
Gallery
29 photos, click to enlarge
Video
A few shots from the outing
Weather, Ancelle
Conditions and forecasts for the itinerary
In the mountains, conditions change fast. A thunderstorm can become dangerous, fog disorients, residual snow slows every step. Before leaving, check the bulletins, plan a stable weather window, and when in doubt, call the tourist office or the local guides office.
Learn to read mountain weather →Questions fréquentes
Can you do the full traverse of all four summits?
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Yes, that is the route described here, 25 km and 1800 m of gain. The south exposure lets you start relatively early in the season (June with the right snow window). Plan on 8 to 9 hours depending on pace, breaks and terrain reading in the scree.
What is the most committing section?
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The ridge between Tete du Seigneur and Grand Autane: sharp, exposed, with a few easy climbing moves. A "tricky passage" sign at the entrance flags it. If the terrain is wet or snowy, this section becomes genuinely dangerous, do not push it.
Can Cuchon alone be done at an intermediate level?
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Yes, Cuchon (2438 m) makes a fine hike in its own right, without the technical section. About 1000 m of gain, far less committing than the rest of the traverse. A good way to get familiar with the area before aiming for the Grand Autane.





















