Coll de Siern walks

Very beautiful (difficult) climb through the forest from Veïnat de la Farga to the large Coll Pregon. This border grazing area is still in use. Then a beautiful ridge line with a few bumps towards Costabona. But you will need to turn off well before this into the forest at Coll de Siern. The passage through the grazing area of Cabanes de l'Ullat is very beautiful. The return is then through the forest.

Another way to climb this Catalan peak situated on the France–Spain border. Please take the following points into careful consideration. A challenging hike due to its significant elevation gain and steep ascents and descents. This hike should not be attempted in fog or mist. (¹) Turn back if the weather changes. This peak is notorious for this weather phenomenon. Set off very early in summer. (²)

A circular walk with no significant difficulties, apart from its length. The climb up to the ridge from Coll Pregon, followed by the descent to the enclosure, offers superb views from east to west, from the Pic du Canigó to Mont Negre and, below, the Tech valley.

This day is an optional part of the 8-day clockwise Tour du Canigou. This day’s walk may be omitted if time is short. This ascent of the peak can be shortened; see the description section.

A mountain hike with a significant elevation gain and a sustained climb, from Coll de Siern to the Torrelles junction. The few markings present, in various colours, are rather faded and are provided for information only.Stunning 360° views over the ridge of La Serra de Fenestrol, followed by a traverse to Roca Blanca dels Som.From the refuge, the view over the valleys is magnificent.The return via the Garnet Mines Trail is just as lovely, although the route is by no means a walk in the park. Indeed, on the descent through the forest, numerous fir trees lie across the path, but they can be easily negotiated (as observed in early November 2026).The walk can be shortened to a circular route by returning directly via the Chemin des Mines.Do not underestimate this walk due to the sections with steep ascents or descents. Allow around 6 hours for the walk.See the ‘Practical Information’ section, where two alternative routes are suggested.

This hike requires a good sense of direction. There are numerous forks in the path and the markings are sparse or old. The route from (6) to (7) is not easy due to numerous fallen trees on the path. The GPX track is therefore necessary to confirm your position. Mostly shaded, this hike can be considered in summer, except in very hot weather.You can avoid following the trail between (6) and (7) by taking the track, then following the yellow and white markings on the left for 100 m until you reach (7).If necessary, two escape routes (7) and (10) allow you to quickly return to La Preste. Elevation gain is close to 900 m. Allow 6 hours including breaks.