L’Aulp du Seuil

The Aulp du Seuil route: this hike ranks among the most beautiful in the Chartreuse.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 4.99 mi
  • ◔
    Average duration: 4h 35 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 2,648 ft
  • ↘
    Descent: - 2,644 ft

  • ▲
    Highest point: 6,037 ft
  • ▼
    Lowest point: 3,488 ft

Photos

Description of the walk

Start: car park at the Col de Marcieu, in the commune of Saint-Bernard du Touvet, in the Chartreuse massif.

(S/E) Follow the small tarmac road for 400 m; this is on the right 100 m after the pass (towards Saint-Hilaire-du-Touvet), with signs halfway along opposite the housing estate.

(S/E) At the end of this, a track branches off to the north-east (barrier) and heads into a wooded area. After a wide circular path to the left, head north along the path on the right which crosses the ski runs and the ski lift. Join a forest track, then, after crossing another track, reach a scree slope (short, steep climb) topped by a young fir forest (landmark for the descent).

(2) Begin a long south-westerly traverse, then a few switchbacks through the forest to emerge into a small clearing (known as "L’Alpette", alt. 1,458m) which offers a striking view of the vast rocky cirque where the ascent route can be made out.

(3) Continue north to quickly reach the foot of the cliff, where the path climbs into the cirque via rocky steps (wide, cut-out steps), secured by railings and wooden stakes for most of the way.
At the top of the cirque, a horizontal traverse beneath a rocky overhang leads to the Cross marking the pass, after rounding a final spur.

(4) Begin the return journey by following the route in reverse to the car park at Col de Marcieu (S/E).

Waypoints

  1. S/E : mi 0 - alt. 3,488 ft - Car park at the Col de Marcieu - Col de Marcieu
  2. 1 : mi 0.07 - alt. 3,488 ft - Crossroads
  3. 2 : mi 0.38 - alt. 3,599 ft - Crossroads barrier
  4. 3 : mi 0.99 - alt. 4,022 ft - Heading south-west
  5. 4 : mi 1.61 - alt. 4,777 ft - L’Alpette
  6. 5 : mi 2.5 - alt. 5,938 ft - Cross of the Aulp du Seuil - Pas de l'Aulp du Seuil
  7. S/E : mi 4.99 - alt. 3,488 ft - Car park at the Col de Marcieu - Col de Marcieu

This route passes through a protected area, which may be subject to special regulations:

Worth a visit

From the summit (alt. 1,830 m), there is a magnificent view of the Belledonne range stretching all the way to Mont Blanc, and of the vast suspended mountain pasture (l’Aulp) of the Vallon de Marcieu, enclosed by the Col de Bellefond and the Seuil forest, and framed by the ridges of the Lances de Malissard and L’Alpette.
Recreational area at the Col de Maecieu.

Reviews and comments

4.7 / 5
Based on 78 reviews

Reliability of the description
4.7 / 5
Ease of following the route
4.7 / 5
Route interest
4.7 / 5
bonnerem
bonnerem

Overall rating : 5 / 5

Date of your route : Jun 11, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A lovely walk. The climb is steep but the route is not difficult provided you’re wearing suitable footwear and have walking poles, which are particularly useful on the descent over the stony sections. Remarkable views over the Marcieu valley, the Belledonnes and Mont Blanc. Ascent: 1 hour 30 minutes; Descent: 1 hour 15 minutes. Set off early to avoid the crowds and the heat.

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sempervivum
sempervivum

Overall rating : 5 / 5

Date of your route : Jun 01, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

This hike is primarily notable for its views of Belledonne and the Malissard peaks. It serves as a good starting point for exploring the Marcieu valley (towards the Col de Bellefond) and the Aulp du Seuil forest (towards Mont Granier). You may spot chamois and marmots here. Following a dispute between hikers and the landowner, you are asked to stay on the marked paths to protect biodiversity. Access (which is prohibited) to the Instagrammable arch is now blocked off. The ascent is easy (less than 2 hours), but the descent requires care on the rocky ground (trekking poles were useful).

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Anibac
Anibac

Overall rating : 4.7 / 5

Date of your route : Jan 02, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

Safe, easy-to-follow hike. The few shaded sections on the climb require crampons due to icy snow. Cold and sunny weather, perfect for winter. The arrival at the cross is nice, but I recommend continuing along the ridge to the relay antenna (20-30 more minutes) for a more complete view, fewer people (lots of people at the cross using the base as a picnic table! ) and to see some chamois.
An ideal hike near Grenoble in the mid-range mountains for a short window (5 hours with all the breaks, chatting, etc. and a slow pace).
Thank you for this itinerary!

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User 23289950

Hello, this hike has been prohibited since 2023 despite positive comments from 2025...?

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Pilou388
Pilou388

Overall rating : 5 / 5

Date of your route : Aug 11, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Very pretty hike, made a little difficult by the heat

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pepinet
pepinet

Overall rating : 4.3 / 5

Date of your route : Jul 18, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful route, the climb is tough, especially in the second part, but the reward is at the top with magnificent views.

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Jeepers38
Jeepers38

Overall rating : 4.7 / 5

Date of your route : Jun 09, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

We continued the hike to the radio relay station. It took an extra half hour, but we were rewarded with a 360° panorama. It was a bit disappointing because the weather was foggy over Belledonne, so we couldn't see Mont Blanc.
It's best to wear good shoes and bring walking sticks for the descent, at least until you reach the forest.

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User 25990532

yes, I agree

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User 25990532

Overall rating : 3 / 5

Date of your route : Jun 02, 2025
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : Not used / Not applicable
Very busy route : No

With regard to the application, parish specific to Brittany, it's very unstable and very difficult to understand, with images all over the place, so I didn't understand anything. It's a very reliable route but the application is very poorly trained.

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User 12461901

Overall rating : 4.7 / 5

Date of your route : Jun 02, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

Very well described walk. It took me 2 hours to get up to the top, so I continued on to the chalet (which added a bit of elevation gain), but there was more wind in the meadow, so I went back up to the Aup du seuil cross for a picnic. Superb views of the Malissard lances and the Bellefond Belledonne pass, the Gresivaudan valley and, of course, Mont Blanc. However, there were a lot of people from 12:30 onwards. Then a careful descent with high boots and poles to avoid being caught out by the stones that roll under your shoes 👟 Don't go up too late as the last section is very exposed to the sun.

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Keyser
Keyser

Overall rating : 5 / 5

Date of your route : Nov 25, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Very nice walk (done at the end of November in the snow). Quite a steep but pleasant climb (remember to turn around or look up from time to time). Arrival at the summit with magnificent views (to be done on a clear day). Take time to appreciate the lances of Malissard and the Marcieu valley behind you. The descent is, of course, just as steep as the ascent (watch out for stinging knees). Thank you for making this route available.

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Rosane
Rosane

Overall rating : 5 / 5

Date of your route : Oct 14, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant walk with a splendid view.
Done the day before the icare cup. The descent through the gravel and stones is not the easiest.

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PATS
PATS

Overall rating : 5 / 5

Date of your route : Aug 31, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

The route is steep but even, with a large section in the shade.

The view from the summit is beautiful.

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Jocelyne P.
Jocelyne P.

Overall rating : 5 / 5

Date of your route : Jun 13, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A great outing despite the steepness of the route. Glad to get to the top, after passing the foot of the rocks, with a magnificent view of the Marcieu valley where we had a picnic with our group. Thank you for this route.

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M13I9C3H8
M13I9C3H8

Overall rating : 4.7 / 5

Date of your route : May 12, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A great warm-up for the summer. On the way back I took the ski slopes.

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