Trail des Monts de Flandre

The Trail des Monts de Flandre is a 42-kilometer trail race with 800 meters of elevation gain starting from Cassel, in the Nord department. This event crosses the Monts de Flandre, a chain of hills that emerges from the Flemish plain like islands of greenery, offering runners a hilly and panoramic course through a landscape of agricultural plains, windmills, and red-brick villages.

Cassel, the start and finish point, is one of the most beautiful villages in France, perched atop Mont Cassel at 176 meters altitude. From this hill, the panorama encompasses the entire Flemish plain, from the belfries of Lille and Dunkirk to the hills of Belgium. Cassel's Grand'Place, with its cobblestones and Flemish facades, provides a striking departure setting for a race that celebrates the singular identity of this border territory.

The Monts de Flandre are a succession of elongated hills scattered across the plain: Mont Cassel, Mont des Recollets, Mont Noir, Mont Rouge, Mont des Cats. Each of these hills, though modest in altitude, offers extended panoramas over French and Belgian Flanders. Runners on the Trail des Monts de Flandre chain climbs and descents between these hills, crossing agricultural landscapes where hops, flax, and cereals compose a mosaic of colors according to the season.

The 800 meters of elevation gain, accumulated through repeated climbs to the hilltops, impose a constant effort of acceleration. The paths alternate between forest trails on the wooded flanks of the hills, dirt tracks between fields, and passages through villages where estaminets, traditional Flemish cafes, offer warm hospitality. The terrain is generally non-technical but can become very muddy in rainy weather, as the clay soil of Flanders transforms into a sticky trap.

The Trail des Monts de Flandre is steeped in Flemish culture. Runners pass the Mont des Cats abbey, where Trappist monks make their famous cheese, follow hop fields where local beer takes root, and cross villages where Western Flemish is still spoken. Windmills, dovecotes, and votive chapels punctuate the course and testify to a rich rural heritage.

Aid stations are a highlight of the race, with generous Flemish specialties: waffles, Maroilles cheese tartines, carbonade flamande, and local beer. The atmosphere is festive and convivial, reflecting the kermesses and ducasses that punctuate the social life of this region.

The Trail des Monts de Flandre is an atypical race in the French trail landscape, far from mountains and coastal trails but nourished by the culture and human warmth of a border region with a strong character. It is an invitation to discover Flanders by trail, between earth and sky, in a landscape where beauty is born from horizontality and light.

Trail des Monts de Flandre is a 42 km trail race with 800 m of elevation gain, located in Cassel, Nord. The next edition is scheduled for 26 April 2026.

Find all official information on the race website.