The pass has been included in the Tour de France route more frequently than almost any other Alpine climb.
It is frequently used as an alternate route to avoid the higher, more congested Col du Glandon nearby.
The original iron cross that gave the pass its name was erected to mark the boundary between different historical Alpine provinces.
The climb from the Saint-Jean-de-Maurienne side is considered one of the more challenging ascents due to inconsistent gradients and exposed sections.
The pass is situated near the boundary of the Oisans and Maurienne massifs.
During the summer, the summit is a popular hub for cyclists attempting the 'Route des Grandes Alpes' challenge.
Col de la Croix de Fer is a high mountain pass in the French Alps, reaching an altitude of 2,067 meters. It connects the Romanche valley to the Maurienne valley via the D926 road. The pass is a major landmark for professional cyclists, having featured in the Tour de France over 20 times since 1947. Its name originates from an iron cross installed at the summit, which serves as a traditional marker for the pass. The surrounding area features rugged alpine terrain with panoramic views of the Aiguilles d'Arves peaks. It serves as a gateway to the Savoie region, surrounded by protected natural environments suitable for hiking and mountaineering. The route is part of the Route des Grandes Alpes, a classic transit for high-altitude touring.
The area immediately surrounding the iron cross at the summit, providing a clear frame of the Aiguilles d'Arves.
Check road status through regional Savoie infrastructure updates before departing, as high-altitude conditions change rapidly.
Bring wind-resistant layers, as temperatures at the summit can be significantly lower than in the valleys even in mid-summer.
If driving, ensure your vehicle's brakes are in optimal condition for the steep, technical descent on either side of the pass.
Attempting the pass in a heavy vehicle or caravan without prior mountain driving experience, as the gradients are steep and switchbacks are tight.
The pass is closed to vehicular traffic during winter months due to heavy snowfall and is typically only accessible from late spring to autumn.
Cyclists have the right of way on the narrow mountain roads; drive cautiously and provide ample distance when passing.
