Col de la Core
The Col de la Core is a mountain pass in the Ariège department of France in the Pyrenees. It connects Audressein with Seix.
Details of climb
Starting from Audressein, the climb is long. Over this distance, the climb is . The climb proper starts at Les Bordes-sur-Lez, from where it is 14.1 km at 5.7%, with the steepest section being at 8.0%.Starting from Seix, the climb is long. Over this distance, the climb is , with the steepest section being at 8.0%.
Appearances in Tour de France
The Col de la Core was first used in the Tour de France in 1984, since when it has featured eight times, most recently in 2021, when the leader over the summit was Patrick Konrad.| Year | Stage | Category | Start | Finish | Leader at the summit |
| 2021 | 2021 Tour de France, Stage [12 to Stage 21#Stage 16|16] | 1 | El [Pas de la Casa] | Saint-Gaudens |  Patrick Konrad.png" /> Patrick Konrad|AUT |