Location and surroundings
The mountain is part of the Ardiden Massif, which is a sub-range of the Central Northern Pyrenees, within the Central Pyrenees and the broader Pyrenees range of the Iberian Peninsula. It is located in the municipality of Argelès-Gazost. Within the Ardiden Massif, which contains 75 named peaks, Arriou Ne is ranked as the 34th highest. The surrounding landscape is characterized by high-altitude terrain typical of the Pyrenees, featuring rugged slopes and proximity to several other peaks and mountain passes.
Neighbouring peaks
- Tuque D'arriou Ne (peak), 2,534 m, 0.3 km S
- Col de Bat Houradade (mountain pass), 2,549 m, 0.4 km SE
- Mecherin (peak), 2,610 m, 0.8 km SE
- Tuque de Bat Houradade (peak), 2,624 m, 1.2 km SE
- Soum de Bat Houradade (peak), 2,722 m, 1.4 km S
- Pointe Nord des Agudes (peak), 2,708 m, 1.9 km S
- Aiguille de Lahazere (peak), 2,552 m, 1.9 km SE
- Soum des Agudes (peak), 2,732 m, 2.0 km S
The nearest higher peak is Mecherin, located 0.8 km to the southeast.
The view from the summit
From the summit of Arriou Ne, several prominent peaks of the Pyrenees are visible within a 25 km radius. These include Monte Perdido (3,349 m) to the southeast, Pico de Vignemale (3,298 m) to the southwest, and Pic de Marboré (3,251 m) to the south. Other notable summits in sight are Pic Long (3,192 m) to the southeast, Pic Balaïtous (3,146 m) to the west, and le Taillon (3,144 m) to the south.
The range
Arriou Ne belongs to the Ardiden Massif, which spans the Pyrenees. The highest peak of this massif is Pic d'Ardiden, which reaches 2,988 m and is located 4 km south of Arriou Ne. The massif contains 75 named peaks, with Arriou Ne holding the 34th position in terms of elevation.
Climbing routes
There are two primary routes to the summit. The Couloir of the Altitoy involves 820 m of ascent and faces north. The West couloir (Coume d'Arriou Né) faces northwest and west, typically requiring one day for the ascent.
Access and starting points
The nearest settlements are the village of Cauterets, 3.8 km to the northwest, and Grust, 4.8 km to the northeast. Access is possible from the La Fruitière car park, located 1.9 km southwest of the top at an elevation of approximately 1,370 m. From this point, the ascent covers about 2.5 km and 1,200 m of elevation gain. Alternatively, starting from Cauterets at 930 m involves a longer approach of approximately 4.9 km and 1,650 m of climbing.
Climate and weather
Estimates from NASA POWER climate data indicate that the mean temperature at the summit ranges from about -3 °C in January to about 8 °C in July. The mean temperature remains above freezing from April through October. Annual precipitation in the surrounding area is about 850 mm, with May being the wettest month (about 95 mm) and July the driest (about 50 mm). Weather in the Pyrenees can change rapidly, and climbers should be prepared for sudden storms, high winds, and potential lightning, which are common hazards at this elevation.
Best time to visit
The most suitable time for climbing Arriou Ne is during the months when the mean temperature at the summit is above freezing, specifically from April to October. July is the driest month, making it a favorable period for ascents. Climbers should monitor local weather forecasts closely, as conditions can vary significantly even during the summer months.
Nature and wildlife
The area around Arriou Ne is characterized by high-mountain terrain, including rocky slopes and alpine meadows. The region is part of the Parc national des Pyrénées (Aire d'adhésion), which helps protect the local environment. Typical wildlife in this part of the Pyrenees includes species adapted to high altitudes, such as the chamois and various raptors. Vegetation is sparse at higher elevations, consisting mainly of hardy alpine grasses and mosses.
Guides and organised ascents
For those seeking professional assistance, the French National Mountain Guides Union (SNGM), which is a member of the IFMGA/UIAGM, provides access to certified mountain guides. The Fédération Française des Clubs Alpins et de Montagne (FFCAM) is the national federation for mountaineering. Established companies such as the Compagnie des Guides de Chamonix operate within the mountains of France. A guided ascent typically includes logistics, safety management, and route navigation, with costs varying based on the duration, group size, and specific requirements of the climb.
Safety and preparation
Climbing Arriou Ne requires proper physical conditioning, navigation skills, and appropriate mountain equipment. The terrain involves steep sections that demand caution. In case of an emergency, the mountain rescue number in France is 112, which connects to the PGHM or CRS Montagne rescue services.
Interesting facts
Arriou Ne is the 34th highest peak in the Ardiden Massif. Its nearest higher neighbor is Mecherin, located 0.8 km to the southeast. The highest point of the massif, Pic d'Ardiden, is situated 4 km to the south.
FAQ
What is the elevation of Arriou Ne? The summit is 2,577 m high.
Where is Arriou Ne located? It is in France, within the Ardiden Massif of the Pyrenees.
Are there huts on Arriou Ne? The Cabane Lagües shelter is located 2.0 km east of the summit.
Is there water on the way to Arriou Ne? There is a water source 2.0 km southwest of the summit. As mountain water should generally be treated, and given the dry nature of high ridges, it is recommended to carry 1.5-3 litres of water per person.
How hard is it to climb Arriou Ne? The routes include couloirs that require mountaineering experience. Climbers should be prepared for steep, technical terrain.
Is there mobile phone coverage? There are 10 communication masts within 10 km, with the nearest 2.8 km to the northeast. Coverage is generally patchy in the mountains and depends on the operator. Always dial 112 for emergencies and download maps before starting.