Port de Lers

The Port de Lers (or Port de l'Hers or Port de Massat) (elevation 1517 m) is a mountain pass in the French Pyrenees in the department of Ariège, between the communities of Aulus-les-Bains (west), Massat (north) and Vicdessos (east).

Details of climb
Starting from Vicdessos, the climb is 11.5 km long. Over this distance, the climb is 807 m (an average of 7.0%), with the steepest section being at 10.9%.

Starting from Massat, the climb is 16.6 km long. Over this distance, the climb is 868 m (an average of 5.2%), with the steepest sections being at 8.9%. At 3.8 km from the summit is the junction with the climb to the Col d'Agnes.

Appearances in Tour de France
The Port de Lers was first used in the Tour de France in 1995, since when it has featured seven times, most recently in 2024.