Conquer Col du Glandon: The Steep and Silent Giant

The experience

Col du Glandon via La Chambre is the quieter neighbour of the Croix de Fer — and often the harder ride. About 21.3 km at roughly 6.9% average, with pitches to 12% and nearly 1,500 m of gain, it is a sustained alpine effort that rewards discipline more than bravado.

From the valley the road climbs through forest and open stretches. Long straights can feel endless: the gradient does not always look dramatic on a map, but the metres keep stacking and the silence of the mountain amplifies every gear change.

The final 3 km are where the Glandon earns its reputation. Gradients steepen, legs complain, and riders who spent matches early discover how long a kilometre can feel. Keep cadence short and focus close — the summit at 1,924 m arrives when you stay patient.

The descent back toward La Chambre is steep and demands respect: cold air, technical lines, and speed that builds quickly. Celebrate at the col, then get warm and check your brakes before you drop.

Pro tips

• Save matches for the final 3 km — that is where the Glandon sorts the well-paced from the optimistic.
• Use mental checkpoints on the long straight stretches; staring only at the summit makes the middle feel longer.
• Descend carefully toward La Chambre: steep, fast, and unforgiving if you overcook a corner.
• A compact gearing setup helps when the upper ramps hit double digits.
• Pair with Croix de Fer when fresh — the two cols sit close enough for an epic Alps loop.