4.6
(5)
47
hikers
6
hikes
Mountaineering routes around Naut Aran traverse the high Pyrenean landscape, characterized by rugged peaks, deep valleys, and numerous alpine lakes (ibones). The region features significant elevation changes, offering challenging ascents and descents across rocky terrain and mountain passes. Glacial cirques and granite formations are common, providing a demanding environment for experienced mountaineers.
Last updated: July 3, 2026
4.5
(2)
14
hikers
14.3km
06:33
860m
860m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
11
hikers
11.5km
05:53
930m
930m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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4.0
(1)
9
hikers
16.1km
05:42
570m
570m
Hard mountaineering route. Very good fitness required. Mostly accessible paths. Sure-footedness required.
5
hikers
18.9km
10:46
1,830m
1,830m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
6
hikers
Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.
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Lake Obago is a lake of glacial origin located at 2,236 m in the municipality of Alto Arán, in the Valle de Arán region. Lake Obago is one of the largest lakes in the Cirque de Colomers, a glacial cirque of more than 50 lakes crowned by peaks that exceed 2,500 meters, such as the Tuc de Ratera (2,861 m) or the Gran Tuc de Colomers (2,933 meters).
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Lake Mayor de Colomers is a lake of glacial origin located at 2128 m in the municipality of Alto Arán, in the Valle de Arán region. Lake Mayor de Colomers is one of the largest lakes in the Cirque de Colomers, a glacial cirque of more than 50 lakes crowned by peaks that exceed 2,500 meters, such as the Tuc de Ratera (2,861 m) or the Gran Tuc de Colomers (2,933 meters). ). The Colomers refuge is located near the lake.
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Gerber Lake is the largest lake in the valley, enclosed by spectacular rock walls. If we want to enjoy a good view of the lake we must ascend a little along the path that goes up on its left side.
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The Mataró refuge, Gerber refuge or Gerber metallic refuge, is located next to La Isla lake, in the Gerber valley, at 2,460 meters of altitude. From the refuge we have magnificent views over the Gerber valley, the lakes we passed on the way up (Estanyola de Gerber, Estany Gerber, Estany Llong, Estany L´Illa) and the peaks that surround us Pic de Saboredo, Pic d´ Medias or Pico de Bassiero).
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The Nerech waterfall is one of the most powerful in the Pyrenees. It flows into the heart of Couserans (vast territory combining high mountains, mountains and foothills, and covered areas). It is home to rich biodiversity. Among the species most observed here, there is a very wide variety of wild orchids.
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The lake of Còth de Baish can be seen from the pass of the same name, at an altitude of 2,190 metres. From the pass it is possible to descend to the lake to admire it up close.
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One of the smallest, but also very flirtatious.
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Naut Aran's mountaineering routes are primarily challenging, with 15 out of 17 routes rated as difficult. There are only 2 moderate routes, making it less suitable for beginners looking for an easy introduction to mountaineering. The region is best suited for experienced individuals.
For experienced mountaineers, routes like the Collado de Molières – Ibones de Molières loop from Espitau de Vielha offer significant elevation gain and rugged terrain. Another demanding option is the Punta Alta Summit – Presa de Caballers loop from Pantà de Cavallers, which includes a challenging summit ascent with panoramic views.
Yes, many of the mountaineering routes in Naut Aran are designed as loops. For example, the Canal de Tuqueta de Saboredo loop from Port de la Bonaigua is a popular circular trail leading through high mountain passes. Another option is the Besiberri New Refuge loop from Noguera Ribagorçana.
The routes traverse a high Pyrenean landscape, featuring rugged peaks, deep valleys, and numerous alpine lakes (ibones). You might encounter glacial cirques and granite formations. Notable highlights include the Pico de Ratera, the scenic Artiga de Lin Valley, and the impressive Monestero Pass.
Yes, the region features several impressive gorges and waterfalls. You can find the Salenques Falls and explore areas like the Corilha Ravine or the Barranco de Casau, which offer dramatic natural scenery.
The best season for mountaineering in Naut Aran is typically from late spring to early autumn (June to September) when the snow has largely melted from higher elevations and weather conditions are more stable. However, conditions can change rapidly in the mountains, so always check local forecasts.
Winter mountaineering in Naut Aran is possible but requires significant experience, specialized equipment (such as ice axes, crampons, and avalanche safety gear), and a thorough understanding of avalanche risk. Many routes become significantly more challenging and dangerous due to snow and ice.
The mountaineering routes in Naut Aran are highly rated by the komoot community, with an average score of 4.8 stars. Reviewers often praise the stunning high mountain passes, the beauty of the alpine lakes, and the challenging nature of the summit ascents that define the region's unique Pyrenean landscape.
While many routes are well-known, exploring less frequented paths can reveal hidden gems. Consider the Restanca Refuge – Montardo Summit Cairn loop from Refugi de la Restanca for a challenging experience that offers breathtaking views away from the most popular trails.
The high Pyrenean landscape of Naut Aran is dotted with numerous alpine lakes, known as 'ibones.' While not officially designated swimming spots, many mountaineers enjoy a refreshing dip in these cold, clear mountain waters during warmer months. Always be mindful of the fragile alpine environment.
Given the challenging nature of the routes, essential gear includes sturdy mountaineering boots, appropriate layers of clothing for varying weather, a waterproof jacket, navigation tools (map, compass, GPS), sufficient water and food, and a first-aid kit. For more technical routes, an ice axe and crampons may be necessary, especially early or late in the season.


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