Col d´Hospitalet

Page Type
Hautes Pyrénées, France, Europe
Route Type:
Hiking, Skiing
Spring, Summer, Fall, Winter
Time Required:
Most of a day
Moderate hike / ski tour

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Col d´Hospitalet
Created On: Dec 11, 2011
Last Edited On: Dec 11, 2011


Col d´HospitaletBarrage de Migouélou

The Val d`Arrens has many possibilities for hikes and for mountaineering. It is a beautiful and in many ways enchanting part of the Bigorre and the Hautes Pyrénées. This route, located in that region, is about traversing a col and visiting several lakes, natural ones and a dam lake, the Lac de Migouélou.

The col is called Col d´Hospitalet. It is the col north of Lac de Migouélou, the deepest part of the ridge between Pic des Tourettes to the west and Pic Arrouy to the east, connecting the Migouélou valley in the south with the Lac de Pouey Laün to the north.

Migouélou lake is a dammed lake and the dam is an extraordinary one: several concrete semi-circles, pushing their concave side into the lake, are holding back the water, coming down from every direction within the upper Migouélou valley. Huge tubes are channeling down the water over 800 meters of altitude difference to the Migouélou power plant, thus feeding the region with water generated energy. When viewed from below the dam looks like a crown sitting in the middle of the valley.

The trailheads of the hike to Col d´Hospitalet are near another dammed lake: Barrage du Tech, deep down in the Arrens valley south of Arrens-Marsous, one of the main villages within Val d´Azun.

Col d´HospitaletPic des Tourettes, Le Milhas

When I hiked up Col d´Hospitalet the plan was to summit Pic des Tourettes. It looked like an easy prey in the IGN topo map. Just follow the ridge from the col and up to the summit. That was wrong! You always should take the denomination of a mountain seriously. Tourettes meens: little rock towers and that was it where we ended at last: the easy ridge was in fact an arete full of little rock spires and towers - good rock to climb but too long and too difficult for us. The normal route to Pic des Tourettes is another one as I learned now from a French internet site. So hopefully this will be another adventure in another year .....

But Col d`Hospitalet is absolutely worth a hike. The lakes are just beautiful, the views from the col are very nice and can be enhancend by climbing the first (and rather easy accessible) “Tourette” (point 2667 m of the IGN topo map)- which we did this day (see the pics on this site) - or climbing Pic Arrouy, which needs some UIAA grade I to II scramble on the west ridge route. Balaitous, Pallas, Arriel and Lurien, together with Grand and Petit Gabizos can be studied thoroughly.

The traverse into Lacs de Pouey Laün valley is a rather long hike and needs some preparation as you start and end at different trailheads. Two cars for the two trailheads, hitchhiking or some bikes are needed to overcome these difficulties (about 3,5 km on the valley road).

Or if you intend to visit only Migouélou valley, there is a nice and in some parts off-trail detour via Réfuge de Migouélou, Col d´Artouste and then the west and northwest side of Migouélou lake below Pic de Palada, Le Milhas and the Tourettes east ridge up to Col d´Hospitalet.

Note: the above mentioned Pic Arrouy is not that Pic Arrouy, which is situated above Vallée de Marcadau! Arrouy means "red coloured" and is a rather common name within the Hautes Pyrénées

Getting There

Col d´HospitaletVal d´Arrens

You reach the trailheads of Val d´Arrens

  • best from Argelès-Gazost by following the direction “Arrens-Marsous” and Val d´Azun on D 918 to Arrens-Marsous. Take there D 105 to Barrage du Tech and into Val d´Arrens;

  • second best from Vallée d´Ossau by using D 934 to Laruns and then D 918 to Arrens-Marsous via Col de Soulor. At Arrens-Marsous go on as described above.

  • The trailhead for Lac de Pouey Laün and Col d´Hospitalet is at the southern end of Barrage du Tech near the camping ground.

    The trailhead for Lac de Migouélou and Col d´Hospitalet is some 3,5 km further on. It is the first parking area after Barrage du Tech on the right hand side of the road (Plaa d´Aste).
    A second parking area is at the end of the road about 1 km south of the Plaa d´Aste trailhead. This second parking area is the starting point for the ski route to Lac de Migouélou.


    From Barrage du Tech

    Follow the road to Bouleste and Col d` Uzious for about 1 km. At a trail junction take the left hand trail into the left hand valley and ascent to Pla d´Artigou. Follow the zigzag trail to Bassia det Pi and at last to Lac de Pouey Laün below Pic Estibère and Pic des Tourettes. Pass the lake on its north and northwest shore and continue on the trail up to Col d´Hospitalet.

    The ski route from Barrage du Tech uses the Pic Arrouy north slopes, called Peyralagor, to reach the Lac de Pouey Laün, starting at Pla d´Artigou. Below Pla d´Artigou and above Lac de Pouey Laün summer and winter route are the same.

    Col d´HospitaletPic d`Estibère
    Col d´HospitaletLac de Pouey Laün
    Col d´HospitaletLurien as seen from the first Tourette

    From Plaa d´Aste

    Take the trail to Réfuge de Migouélou (signposts at the parking area). Ascent on that trail in many zigzags to La Mouric above the Vallon de l´Arriougrand and gain the south slopes of Pic Arrouy high above that Vallon. Traverse these south slopes to a trail junction below the dam of Lac de Migouélou. Take the right hand trail which leads steeply up to Col d´Hospitalet (signpost). The Réfuge de Migouélou is about 5 minutes from the trail junction below the dam via the left hand trail.

    The ski route to Lac de Migouélou and Col d´Hospitalet starts some 1 km south of the summer trailhead at the last parking area of the Val d´Arrens and uses the steep slopes up to Lac des Touest, before traversing to Lac de Lassiédouat and Lac de Migouélou. From there the ski route follows the summer route. This ascent seems to be very steep.

    Col d´HospitaletLac de Migouélou
    Col d´HospitaletPic du Midi d´Azun
    Col d´HospitaletVignemale and Balaitous

    Pleasant encores to do

    Pic Arrouy (2708 m): west ridge, UIAA grade I / II, off-trail

    Pic des Tourettes (2771 m): From the col ascend the east ridge and traverse the south slopes of that east ridge where it is possible (steep meadows about 150 meters below the ridge crest) in western direction. Ascent over scree and easy rocks to Col de Milhas. Use the south ridge from Col de Milhas to Pic des Tourettes (UIAA grade I / II) or use the north ridge to the summit “Le Milhas” (2739 m; rock and steep meadow scramble)

    Col d´HospitaletMigouélou surroundings
    Col d´HospitaletOn the first "Tourette"
    Col d´HospitaletVal d´Arrens

    First “Tourette” of the Pic des Tourettes east ridge (2667 m): Follow the east ridge from the Col; bypass steep rock parts in the lower section on their south side (easy rock and steep meadow scramble).

    Col d´HospitaletPanorama from Col d´Hospitalet

    Red Tape & Accommodation

    Pic ArrouyNational Parc regulation

    Red Tape

    The Col d´Hospitalet and the routes are within the “Parc National des Pyrénées”. This huge national park covers about 2060 km² and has many restrictions as you can see on the picture.

    Camping is generally forbidden in the national park and in a zone half an hour from outside the park borders. Near the mountain club huts normally special zones are reserved for overnight camping.

    There are no fees for entering the park. The parking areas at Barrage du Tech and Plaa d´Aste are free (2011).

    Fishing is possible with some regulations at the Lac de Migouélou.


    You find all kinds of accommodation in the surrounding villages:

  • hotels

  • bed & breakfast

  • holyday houses and appartment

  • campgrounds

  • Col d´HospitaletRéfuge and Lac de Migouélou

    Nearby villages are:

  • Argelès-Gazost

  • Val d´Azun

  • Arrens-Marsous

  • Lourdes

  • Mountain hut

  • Réfuge de Migouélou
    The hut is guarded during summer; the guardian provides some food and star observation material for clear nights (!)

  • Gear & Mountain Condition

    Col d´HospitaletPic Pallas and Arriel

    Col d´Hospitalet is a normal hiking route in summer and autumn. You need hiking gear and - in early summer - some gaiters.

    If you intend to summit one of the surrounding peaks you should master UIAA grade I to II in off-trail terrain, steep meadow and scree slopes with some exposure.

    In winter / spring you need full ski tour gear and your avalanche gear when venturing out for Col d´Hospitalet.

    Check the Hautes Pyrénées avalanche conditions here .

    Réfuge de Migouélou is a guarded hut, normally from end of june through september. In unguarded times there is an open room for overnight stays and a huge bath tube in front of the hut: Lac de Migouélou.

    Current Weather:

    Maps & Guide Book


    IGN Institut Géographique National, scale 1 : 25.000

    Number 1647 OT, Vignemale, Ossau, Arrens, Cauterets, Parc National des Pyrénées


    Please add some good guide books for that region, if you know any.