Col de la Core

Starting from Audressein, the climb is 17.5 km (10.9 mi) long. Over this distance, the climb is 885 m (2,904 ft) (an average of 5.1%). 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%.^[2]

Starting from Seix, the climb is 13.8 km (8.6 mi) long. Over this distance, the climb is 885 m (2,904 ft) (an average of 6.4%), with the steepest section being at 8.0%.^[3]

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.^[4][5]

Year	Stage	Category	Start	Finish	Leader at the summit
2021	16	1	El Pas de la Casa	Saint-Gaudens	Patrick Konrad (AUT)
2015	12	1	Lannemezan	Plateau de Beille	Kristijan Đurasek (CRO)
2011	14	1	Saint-Gaudens	Plateau de Beille	Mickaël Delage (FRA)
2004	13	1	Lannemezan	Plateau de Beille	Sylvain Chavanel (FRA)
2003	14	1	Saint-Girons	Loudenvielle	Richard Virenque (FRA)
2002	12	1	Lannemezan	Plateau de Beille	Laurent Jalabert (FRA)
1998	11	2	Bagnères-de-Luchon	Plateau de Beille	Roland Meier (SUI)
1984	11	1	Pau	Guzet-Neige	Jean-René Bernaudeau (FRA)