Mountain passes around Marignac are situated in the Haute-Garonne department of France, nestled within the Pyrenees mountains. This region provides access to several mountain passes known for their challenging climbs and natural landscapes. These passes are popular destinations for cyclists and visitors seeking mountain experiences. The area features routes with historical significance, particularly in professional cycling events.
Last updated: June 26, 2026
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A beautiful transitional port between the Le Ger river valley and the Garonne river valley
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Beautiful road marked on every bend by posts celebrating Spanish winners of the Tour de France, and kilometre markers with gradient, altitude etc. it finishes at the border, which is the col.
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Beautiful climb up Col de Menté. Although not a really famous climb it is a beautiful one, with nice hairpins inside the forest and beautiful views at the end.
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Also, stop at the Là Soulan hostel for a well-deserved break. Very warm welcome. 👍
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From Mauléon-Barousse, this 19-kilometer hors catégorie climb is completed in three stages. The first seven kilometers are fairly straightforward, then the next seven become more complicated, before culminating in a grand finale with the last five at over 9%. Even more so than on other passes, the key here is economy.
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From Lez, the ascent of the Col de Menté is classified as first-class, with nine kilometers at an average gradient of 8.7%. Its fairly steady gradient allows you to find your own pace.
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One of the mythical Pyrenean ports of the Tour de France, known largely for the tragic fall of Luis Ocaña in the 1971 Tour when he was leading the general classification. Its 2 aspects have a lot of crumbs: - west slope that starts from Saint Béat: it is the hardest. It is 9.7 km with an average slope of 8.7%. It is a very constant climb, with a small break when passing through Boux. The first part is a little harder and uglier since you barely have any views and you go up through the middle of a valley. The final part is spectacular with its many horseshoe curves, good panoramic views and the monument to the place where Luis Ocaña fell. - east slope: it is longer, with an initial section of 7 km very winding with a slope of 4%. It also has a break in its intermediate zone. Once the hard part starts, it is also very constant, like the west slope, although the average slope is 7-8%. This aspect has even more twists than the previous one. For more information, consult the profile published by cylcingcols.com -- > http://www.cyclingcols.com/col/Mente
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Magnificent view for the climb to the pass from Artichan-de-Frontignes, however I found the climb on the other side (from the Col de Buret) more interesting because it was a little longer.
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The region around Marignac offers several significant mountain passes. Among them, the Ascent to Col du Portillon from Bossòst is an emblematic pass of the Pyrenees, peaking at 1,293 meters on the border between France and Spain. Another key pass is Menté Pass, which connects the Garonne and Ger valleys at 1,349 meters. The Col des Ares, at 797 meters, provides a lovely panorama over the Garonne valley.
Several passes near Marignac are renowned for their challenging ascents, particularly popular with cyclists. The Menté Pass features sections with gradients exceeding 11%. The Col de Portet d'Aspet also includes tough sections, especially in its final 4.4 km from Aspet, where the average gradient is 9.6% and reaches a maximum of 12.8%. The Col du Portillon is considered a challenging Category 1 climb, with sections reaching 14% from Bagnères-de-Luchon.
Many mountain passes near Marignac hold significant historical importance, particularly due to their frequent inclusion in the Tour de France. The Col de Menté is a legendary climb, featured often since 1966, and is known for a dramatic incident involving Eddy Merckx and Luis Ocaña in 1971. The Col de Portet d'Aspet, first used in 1910, has appeared over 30 times and is tragically remembered as the site of Fabio Casartelli's accident in 1995. The Col du Portillon has also been featured 20 times in the Tour de France since 1957.
The mountain passes near Marignac offer diverse natural beauty. While some, like the Col de Menté and Col de Portet d'Aspet, are largely forested, they still provide scenic views, especially from certain ascent sides. The climb to the Col du Portillon, though heavily wooded, features waterfalls and a quiet, beautiful experience. The Col des Ares offers a lovely panorama over the Garonne valley.
For those seeking a less strenuous experience, the Col des Ares culminates at 797 meters above sea level, making it one of the lower and potentially more accessible passes in the area. It offers a pleasant ride and a panorama over the Garonne valley without the extreme gradients found on some of the higher, more famous climbs.
The area around Marignac's mountain passes is excellent for various outdoor activities. Road cycling is very popular, with numerous challenging routes. You can also find mountain biking trails, such as those detailed in the MTB Trails around Marignac guide. For those who enjoy running, there are several Running Trails around Marignac, including loops from Eup and Cierp-Gaud.
Yes, the region is a haven for road cyclists. You can explore routes like the challenging Bagnères-de-Luchon – Superbagnères Summit loop or the Menté Pass – Portet-d'Aspet pass loop. For more options, refer to the Road Cycling Routes around Marignac guide, which provides details on various routes, including those passing through Col des Ares and Port de Balès.
Visitors frequently praise the challenging yet rewarding climbs, the rich cycling history, and the natural beauty of the Pyrenees. Many appreciate the well-maintained road surfaces and the relatively low traffic on passes like the Col du Portillon, providing a pleasant riding experience. The panoramic views, especially from spots like the Col des Ares, are also highly valued.
The mountain passes are generally best visited during the warmer months, typically from late spring to early autumn (May to October), when the weather is more stable and the passes are clear of snow. This period is ideal for cycling, hiking, and enjoying the scenic drives. Some lower passes, like the Col du Portillon, may remain open even during colder months due to their relatively lower altitude.
The Col de Menté is a significant pass in the central Pyrenees. You can find more detailed information about its history, particularly its role in the Tour de France, and its challenging ascents on its Wikipedia page: Col de Menté Wikipedia.
Yes, the Col de Portet d'Aspet features a memorial located 4km from the summit on the Aspet side, commemorating Italian rider Fabio Casartelli, who tragically crashed and died during the 1995 Tour de France. The Col de Menté also has a plaque on one of its hairpins on the Saint-Béat side, marking a dramatic incident from the 1971 Tour de France.
The Port de Balès is a challenging hors catégorie climb, particularly from Mauléon-Barousse. This 19-kilometer ascent is completed in three stages, with the final five kilometers featuring gradients of over 9%. It is known for requiring strategic pacing due to its sustained difficulty.


See even more epic mountain passes by checking out these guides around Marignac: