Alpine Climbs

The Fireflies Tour takes amateur riders 1,000+ km across the Alps from Lake Geneva to Cannes, cycling over some 20 mountain passes in just 8 days. The route depends on conditions, but it includes many of the great climbs of the Central and Southern Alps.

Col d'Allos – 2,240 m
Average grade: 6.3%
Length: 17.5 km
Ascent: 1,108 m
Maximum grade: 10.0%

Col des Aravis – 1,486 m
Average grade: 4.6%
Length: 18.9 km
Ascent: 866 m
Maximum grade: 8.0%

Col de la Bonette – 2,715 m
Average grade: 6.6%
Length: 24 km
Ascent: 1,589 m
Maximum grade: 12.0%

Col de Castillon - 706 m
Average grade: 4.6%
Length: 15.0 km
Ascent: 697 m
Maximum grade: 6.8%

Col de la Cayolle – 2,326 m
Average grade: 6.3%
Length: 20.5 km
Ascent: 1,291 m
Maximum grade:10.0%

Col des Champs – 2,087 m
Average grade: 6.5%
Length: 16.3 km
Ascent: 1,052 m
Maximum grade: 10.7%

Col de la Colombière – 1,613 m
Average grade: 6.8%
Length: 16.3 km
Ascent: 1,108 m
Maximum grade: 10.8%

Col de la Couillole – 1,678 m
Average grade: 4.6%
Length: 29.4 km
Ascent: 1,340 m
Maximum grade: ?%

Col de la Croix de Fer – 2,068 m
Average grade: 4.7%
Length: 27.5 km
Ascent: 1,292 m
Maximum grade: 12.0%

Col de la Croix-Fry – 1,457 m
Average grade: 6.6%
Length: 12.8 km
Ascent: 842 m
Maximum grade: 9.3%

Col de L'Echelle – 1,766 m

Average grade: 5.4%
Length: 8.8 km
Ascent: 476 m
Maximum grade: 9.5%

Col du Galibier – 2,677 m CLOSED
Average grade: 6.9%
Length: 18.1 km
Ascent: 1,236 m
Maximum grade: 10.0%

Col du Glandon – 1,924 m
Average grade: 6.9%
Length: 21.3 km
Ascent: 1,472 m
Maximum grade: 13.0%

Col de l'Iseran – 2,764 m
Average grade: 5.5%
Length: 17.0 km
Ascent: 1,770 m
Maximum grade: 8.0%

Col d'Izoard – 2,361 m
Average grade: 6.9%
Length: 15.9 km
Ascent: 1,095 m
Maximum grade: 7.0%

Monte Jafferau – 1,908 m
Average grade: 9.0%
Length: 7.2 km
Ascent: 623 m
Maximum grade: 14.0%

Col du Lautaret – 2,057 m
Average grade: 3.9%
Length: 34.1 km
Ascent: 1,313 m
Maximum grade: 9.0%

Col de Luens – 1,024 m

Average grade: 5.1%
Length: 2.1 km
Ascent: 108 m
Maximum grade: 6.0%

Col de la Madaleine – 1,993 m
Average grade: 7.8%
Length: 19.3 km
Ascent: 1,505 m
Maximum grade: 12.5%

Col du Marais – 840 m
Average grade: 3.5 %
Length: 9.15 km
Ascent: 326 m
Maximum grade: 15.0%

Col de Montgenèvre – 1,792 m
Average grade: 5.3%
Length: 12.3 km
Ascent: 648 m
Maximum grade: 8.0%

Le Cormet de Roselend – 1,968 m CLOSED
Average grade: 6.0%
Length: 20.3 km
Ascent: 1,227 m
Maximum grade: 9.0%

Col Saint Martin – 1,500 m
Average grade: 6.2%
Length: 16.5 km
Ascent: 1,018 m
Maximum grade: ?%

Col des Saisies – 1,650 m
Average grade: 6.4%
Length: 15.0 km
Ascent: 957 m
Maximum grade: 11.0%

Col du Télégraphe – 1,566 m
Average grade: 8.2%
Length: 11.8 km
Ascent: 856 m
Maximum grade: 8.2%

Col de Toutes Aures – 1,120 m
Average grade: 2.7%
Length: 9.7 km
Ascent: 238 m
Maximum grade: 4.0%

Col de Vars – 2,108 m
Average grade: 5.7%
Length: 14.1 km
Ascent: 798 m
Maximum grade: 10.6%