Mourre de Gâche

This impressive rocky ridge is visible from Sisteron and the surrounding area. If you dream of climbing it, here is one of the possible routes. It's a fairly easy hike but offers exceptional views of the mountains, the Sasse valley and the Durance river.

Details

159340
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 7.89 km
  • ◔
    Average duration: 3h 20 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 367 m
  • ↘
    Descent: - 367 m

  • ▲
    Highest point: 1,351 m
  • ▼
    Lowest point: 1,018 m

Photos

Description of the walk

Access: From Sisteron, take the D3 road towards Saint-Geniez. Before reaching Saint-Geniez, park in one of the few parking spaces available at the foot of the Pierre Écrite. A Latin inscription is carved into the rock.

(S/E) A few metres away, a small path marked in yellow climbs up to your left.

(1). You will start a short but steep climb, which can become very difficult in hot weather.

(2) At the top of the hill, you will arrive at a track at the foot of an old dead oak tree. An information plaque from the Route du Temps explains the forest species around you. Take the track on the right.
After passing under a high-voltage power line, you will see a path on your left that leaves the track and climbs through the forest.

(3) Take this path and follow it until you reach the ridge. You will pass under the high-voltage power line again. Continue on to the ridge.

(4) At the top of this ridge, enjoy the view. Turn left and follow the ridge. The path is not always very clear, but you cannot get lost.
You can turn back before reaching the end, but I really recommend going all the way to the end of the ridge.
The further you go, the more beautiful the landscape becomes. Admire the impressive vertical rock face, which looks as if it could break away at any moment and fall into the valley.

(5) Return by the same route you took on the way there. To make sure you don't miss the path that leaves the ridge, use the high-voltage power line as a reference point: the path branches off to the right just before the pylon.
You can also try to reach the track by cutting across the heath and forest from the ridge (this is what I tried to do, but it's not always easy) (S/E).

Waypoints

  1. S/E : km 0 - alt. 1,029 m - Parking is available at the foot of the Pierre Écrite.
  2. 1 : km 0.14 - alt. 1,018 m - Path on the left - Pierre Ecrite
  3. 2 : km 0.52 - alt. 1,123 m - Dead oak tree
  4. 3 : km 0.89 - alt. 1,115 m - Path on the left
  5. 4 : km 1.79 - alt. 1,226 m - Ridge
  6. 5 : km 3.95 - alt. 1,328 m - Summit of Gâche
  7. S/E : km 7.89 - alt. 1,029 m - Parking is available at the foot of the Pierre Écrite.

Notes

Wear suitable footwear: the gravel is loose on the first slope and you could twist your ankles.
Be wary of high temperatures and windy days.

Worth a visit

You can walk past the Pierre Écrite. Without even realising it, look up: it's still impressive and will take you back in time!

Reviews and comments

4.8 / 5
Based on 59 reviews

Reliability of the description
4.8 / 5
Ease of following the route
4.8 / 5
Route interest
4.8 / 5
BÉRARD DANIEL
BÉRARD DANIEL

Overall rating : 5 / 5

Date of your route : Apr 02, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

The hike starts with a steep slope, but the going is gentle and there are no difficulties.
A 360° panoramic view from the summit of this mountain.

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marceldetouillon@gmail.com
marceldetouillon@gmail.com

Overall rating : 4.7 / 5

Date of your route : Dec 08, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

I was already familiar with this route, but due to the temperature, I started from (La Baleine) a few hundred metres after the Pierre Écrite departure point and joined the route described. This alternative route is longer but less steep and less wooded in case of inclement weather.

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Phyloux
Phyloux

Overall rating : 4.7 / 5

Date of your route : Mar 04, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A quick walk. Let's say at the most without hurrying 01h30 for the ascent and one hour for the descent.

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Francou38
Francou38

Overall rating : 4 / 5

Date of your route : Nov 05, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

We hiked in beautiful autumn sunshine;
The start of the hike was difficult, but we climbed straight away without warming up.
The trail is good and the explanations are clear.
The scenery and oak trees are breathtaking, and the scents of thyme and lavender are pleasant.
We continue along the ridge, passing a large horse paddock.
At the end of the ridge, two large cairns await us, and the view is superb.
We took the same path for the descent.
The many cairns in the middle of the garigue help us to descend and enable us to find the forest road, as well as the path back to the tarmac road.

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jijijcj
jijijcj

Overall rating : 5 / 5

Date of your route : May 23, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

As described, it's a tough climb at the start but well worth the diversions for the rest of the hike.
Once you reach the top of the ridge, you have a magnificent view over the valley.
Highly recommended!

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Monique Marseille
Monique Marseille

Overall rating : 5 / 5

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

To avoid the return trip, we followed a path to the right at a large cairn on the left and at or just before a large dead tree. At this time of year, there is a protective net for the herds. We walked along it, and on the map you can clearly see the dotted and then solid black path that joins the written stone.

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1950bba
1950bba

Overall rating : 5 / 5

Date of your route : May 18, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very nice walk.
And easy! 3 hours of actual walking, and the DM is more like 300 m.
To avoid making a return trip, finding a route down from the summit directly to point 2 can be complicated.
It is simpler to take this shortcut in the other direction, as already suggested by Brayman: turn left at point 2. A more detailed (and illustrated) description of this variant can also be found on the competing altituderando website ("crêtes de la Montagne de Gache et le Lauzas en boucle"). In any case, the general direction is obvious and once out of the forest it goes more or less everywhere.
The view from the ridge is, as hoped, exceptional.
Descent following the Visorando itinerary. I had feared that the descent from point 4 would be steep and rocky, and therefore "rolling", but in fact this only applies to the final section between 2 and 1. Between 4 and 2: forest trail, moderate gradient and soft ground.
All in all, a positive experience!

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quito84
quito84

Overall rating : 5 / 5

Date of your route : Nov 29, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Very nice walk. Superb views over the ridge. On the way back, we took the track between altitudes 1335 and 1357 (old dead oak tree) heading south-east, which immediately caught up with a path and then a track as far as point 2. This saved us a round trip... Thanks for the suggestion.

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Claraazimut
Claraazimut

Overall rating : 5 / 5

Date of your route : Aug 12, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

I did this hike with my dog at the end of the day. It's a very tough climb at first, but once you get over the short climb, it's an easy one and the view from the ridges to the summit is worth the diversions!

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abeauville
abeauville

Overall rating : 5 / 5

Date of your route : May 02, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Great hike, the view once you reach the ridge is superb. I found 420m of ascent (cumulative) and not 589... A hike that can be done in half a day.

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Gégé d'Embrun
Gégé d'Embrun

Overall rating : 5 / 5

Date of your route : Jan 29, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

An excellent hike, in the sunshine, a tough climb at the start but short, then very easy, and once on the crests: an extraordinary view of the Hautes-Alpes, well worth the trip. A short hike, the difference in altitude is much less than indicated... even with the cumulative total.

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Ness
Ness

Overall rating : 4 / 5

Date of your route : Oct 17, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Wonderful hike, in the October sunshine, beautiful autumn colours, the start is a bit steep though 😁 but the view at the top is exceptional.

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brayman
brayman

Overall rating : 4.7 / 5

Date of your route : Aug 29, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

FOR A LOOP ROUTE: AT POINT 2 TAKE LEFT (ignore the sharp limestone pavement sign to the right).
Follow the forest track, which becomes a well-marked path. Bear left uphill (large stone with "crête" sign).
After crossing a small sharp limestone pavement, join the ridge 300 metres before its end (don't miss the outward and return journey!).
This route is clearly marked on the map: first with a thin line, then with a dotted line: no problem for GPS tracking.
The return journey takes you from point 5 to point 4, with a truly superb view.
Note: from 1 to 2: fairly rough - from 2 to 1: be careful!
Parking Pierre Écrite: 2 / 3 km before St Geniez from Sisteron - max 5 / 6 cars

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Laurent C
Laurent C
• Edited:

@GrosseValerie: as detailed in the description, the start is at the small car park at the "Written Stone". Steep path just to the right of the stone.

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Laurent C
Laurent C

Overall rating : 4.7 / 5

Date of your route : Feb 06, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A good little hike on an open ridge, with the ultimate view of Sisteron and the Monges behind.
The return journey takes just over 3 hours from Pierre Ecrite, as we cut off halfway back along the ridge to catch up directly with the path below.

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