Col de Marie-Blanque, East side

Bielle, Nouvelle-Aquitaine, FR

Route Overview

Debbie

Pyrenees Velo

31 mi.
3,806 ft.

The Col de Marie-Blanque is a classic Pyrenean pass steeped in Béarnaise history, connecting the verdant Vallée d'Ossau with the neighbouring Vallée d'Aspe. Starting from the quiet village of Bielle, the climb takes its name from Maria Blanca, a legendary 14th-century Béarn princess known for her beauty, as well as the white Egyptian vultures that nest along these limestone cliffs.

Tucked into the lush, peaceful landscapes of the Béarn region in the Pyrénées-Atlantiques, this climb throws its toughest challenges at you early and late. Leaving Bielle, the route hits hard right away with the first 4 kilometers averaging a steep 9%, testing your legs before easing off across a welcome high plateau with magnificent, wide-open views back over the floor of the Ossau Valley. Once you enter the shaded forest, however, the road pitches up brutally, ramping up to punishing average gradients of 15% through the trees before reaching the summit.

Famous for its frequent appearances in the Tour de France, it’s a true playground for cyclists—though keep in mind there is only a single café stop along the route, so be sure to pull in if you need to top up your bottles or grab a quick bite before tackling those steep forest ramps.

Route Details

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