Stage 4 of the GR20

Here are the details of this stage of the GR20, number 4 if you come from the north (calenzana) or number 13 if you start from the south (Conca)

Between Ascu Stagnu and Tighjettu in both directions :

From Ascu Stagnu to the Tighjettu refuge From the Tighjettu refuge to Ascu Stagnu
GR20 North > South (stage 4) GR20 South > North (stage 13)
9 km | 1200 m D | 1000 m D – 9 km | 1000 m D | 1200 m D –
GPX trail for the North > South stage GPX trail for the South > North stage
Download PDF topo Download PDF topo
See details of the North > South stage See details of the South > North stage
Highlight: Monte Cinto | Refuge de Tighjettu | Pointe des éboulis
Highest point: 2607 m | Lowest point: 1400 m (Ascu station)
Sources: xxx (km5) | xxxx (km8)
Accommodation and food: Tighjettu refuge | Asco Stagnu resort
IGN map: Consult here | Download all GR20 maps
Following stage NS: from Tighettu to Ciottulu di i Mori Following stage SN: from Ascu Stagnu to Carrozzu
Previous stage NS: from Carrozzu to Ascu Stagnu Previous stage SN: from Ciottulu di i Mori to Tighettu

Stage 4 of the GR20 North > South | Ascu Stagnu > Tighjettu

This is the profile of the stage between Asco station and the Tighjettu refuge, via Monte Cinto: one ascent, one descent.

Profile of stage 4 between Ascu Stagnu and Tighjettu

Printable summary of the topo for stage 4 of the GR20 North-South

1 – Stage 4 of the GR20 takes place in two main stages: a gradual ascent of 1,000 metres over more than 5 km, followed by a descent of almost as much to reach the Tighjettu refuge. This stage begins by heading due south along the Ruisseau du Tighjettu for almost 2 kilometres.

2 – Head east, this time following the Rivière de l’Asco until you reach Lac d’Argentu, around 4 kilometres from the start of the stage. Along the way, you’ll see the Tour Penchée on your right and Capu Borba and Bocca Borba on your left.

3 – Once you’ve reached the lake, you’ll have a great view of Monte Cinto, which is also the highest peak in Corsica. All that remains is to reach the Pointe des Éboulis , 5.3 kilometres from the start of the stage. This is the highest point of the day, at almost 2,600 metres, unless you want to tryclimbing Monte Cinto, a hundred metres higher.

4 – Head south-west to finish this stage with a descent of less than a kilometre, where you can stop to take a break in front of the Bocca Crucetta (2,450 metres above sea level) on your left and Capu Larghia on your right. From this path, you’ll also have a good view of Lac du Cintu.

5 – After a 1,000-metre drop, all you have to do is follow the Ruisseau de Crucetta upstream past the Source de Bocca Crucetta, to finish your stage at the Refuge de Tighiettu at an altitude of more than 1,660 metres. On the way down, you’ll have had a fine panoramic view of the Capu Rossu ridge. This route will at least have enabled you to avoid the Cirque de la Solitude, an old route that is no longer relevant today.

Report on stage 4 with analysis of IGN maps and photos

After a good night’s sleep in the resort of Asco, you were able to enjoy a level of comfort that you won’t find every night, and certainly a hot shower.

On the slopes of Monte Cinto on stage 4 of the GR20
On the slopes of Monte Cinto

The stage begins directly with the ascent of Monte Cinto towards the Cirque de la solitude or Pointe des Éboulis! Watch the superb video footage at the bottom of the page!

GR 20 - Monte Cinto
Lake Cinto

To all those wondering whether stage 4 takes you through the Cirque de la Solitude: yes and no. Why not? Remember, in 2015, there was a tragic accident in the cirque (a landslide that claimed the lives of 7 people in 2015), a ban on access had been imposed. Since June 2018, the authorities have officially lifted the ban on access to the cirque de la solitude, but it is no longer the official crossing point for the GR20 from Asco to Tighjettu. What was a variant before 2015 has remained the official route since the accident.

Reopening of the circus of solitude
The cirque of solitude

This is the track that takes you over the Pointe des éboulis (2607m) just below Monte Cinto, a route that is just as technically difficult and much longer physically! In fact, this is the highest point on the GR20, and there can still be snow here very late in the season. From here, you can make thefinal ascent to Monte Cinto (2706m ), the highest point in Corsica.

Don’t take any chances: if the wind is blowing hard and a storm is forecast, head straight down to Tighjettu.

And here is the refuge at Tighjettu, as if clinging to the slopes of the Cinto, a remarkable sight, isn’t it?

Tighjettu refuge

The old route through the cirque de la solitude is no longer signposted and is not considered a variant of the GR20.

Warning: the GR20 is a trail with high mountain sections, so don’t take this hike lightly: use appropriate hiking equipment for the GR20, be at least reasonably trained and don’t set off without IGN maps or the Topoguide

Videos of the terrain between Ascu Stagnu and Tighjettu:

Here’s Julien’s video, some magnificent images that really show just how difficult this stage on the slopes of Monte Cinto can be.

This video below also sums up thestage from Asco station to Tighjettu very well: enjoy the beautiful images posted online by “GR20 I had a dream”.

Stage 13 of the GR20 South > North | Tighjettu > Ascu Stagnu

This is the profile of the stage between the Tighjettu refuge and the Asco resort, via Monte Cinto: one ascent, one descent.

Profile of stage 13 between Tighettu and Ascu Stagnu

Printable summary of the topo for stage 13 of the GR20 South North

1 – Starting from the Tighiettu refuge at an altitude of 1,660 metres, follow the Crucetta stream for almost 2 kilometres in a north-easterly direction. During this ascent, which covers more than 3.5 kilometres with an ascent of 900 metres, you will see Capu Rossu and Capu Larghia to your left.

2 – After 2.6 km, you’ll come to the Bocca Crucetta on your right, along with Capu Falu. From here, you’ll also have a great view of Lac du Cinto. Continue your ascent in the same direction until you reach the highest point of this stage at 3.5 kilometres, the Pointe des Éboulis, which reaches an altitude of over 2,600 metres.

3 – Once you’ve passed this point, you’ll begin a gradual descent covering more than 1,000 metres of ascent. Continue northwards until you come to Lake Argento on your right. From here, you’ll have a great view of Corsica’s highest peak, Monte Cinto, which rises to over 2,700 metres.

4 – Head north-west to catch up with the Asco river, passing Bocca Borda and then Capu Borba. Following the river, you will come to the Ruisseau du Tighiettu, cross the Source du Haut Asco and finish your stage at the Asco station at an altitude of 1,420 metres.

IGN map between Ascu Stagnu and Tighjettu

This is the IGN map of stage 4 of the GR20, which corresponds to stage 13 of the GR20 South > North. You can clearly see the old route, which goes towards the lost pass (to the west). The official route today is the one that leaves Asco heading south-east, below Bocca Borba, then the point of the scree and then full descent to Bocca Crucetta (not shown on this map, we will be adding to it shortly). Go to this page to download all the IGN maps of the GR20.

IGN map of stage 4 of the GR20

Book at Refuge Ciuttulu Di I Mori

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