Puy-de-Dôme: cycling cols

12 cols, each with the distance, ascent and gradient of every climb, derived from the OpenStreetMap road network.

Where they are

Climbs ranked from hardest to easiest
Col	Altitude	Main climb	Distance	Gain	Loss	Gradient	Difficulty	Climbs
Col de la Chamboite	1,487 m	Depuis Marat	15.2 km	987 m	—	6.5 %	6.8 Sustained	2
Col du Béal	1,390 m	Depuis Marat	12.9 km	890 m	—	6.9 %	6.5 Sustained	2
Pas de la Croix	1,399 m	Depuis Olmet	18.1 km	961 m	13 m	5.3 %	5.4 Sustained	2
Col des Supeyres	1,366 m	Depuis La Forie	14.4 km	797 m	13 m	5.5 %	4.6 Moderate	2
Col de Ceyssat	1,078 m	Depuis Chamalières	11.1 km	678 m	—	6.1 %	4.2 Moderate	2
Les Pradeaux	1,196 m	Depuis Ambert	11.0 km	635 m	—	5.8 %	3.9 Moderate	3
Col de la Croix Saint-Robert	1,451 m	Depuis Montaigut-le-Blanc	27.6 km	1,004 m	47 m	3.6 %	3.8 Moderate	2
Col de la Croix-Morand	1,401 m	Depuis Saint-Nectaire	16.3 km	757 m	15 m	4.6 %	3.8 Moderate	2
Col de la Moréno	1,102 m	Depuis Chamalières	12.5 km	675 m	—	5.4 %	3.7 Moderate	3
Col de Toutée	996 m	Depuis Domaize	15.9 km	687 m	51 m	4.3 %	2.5 Moderate	3
Col de Guéry	1,268 m	Depuis Saint-Pierre-Roche	17.4 km	580 m	27 m	3.3 %	2.0 Easy	1
Col des Fourches	970 m	Depuis Ambert	10.2 km	454 m	—	4.5 %	2.0 Easy	2

Scroll the table sideways to see every column.

Ranked by the FIETS index of the main climb — the same index each page prints, with its formula.

How this index is calculated

FIETS index: Δaltitude² / (10 × distance) + max(0, summit altitude − 1,000) / 1,000, lengths in metres. How this index works (article in French)

The nearest published departments, measured as the crow flies between the cols themselves.

Sleipnir recognises the cols you cross from the GPS trace of your rides: the col ticks itself off the day you ride over it.

Free during the beta, no card required — places are limited.

A Polar watch syncs on its own; with any other watch, import your GPX or TCX files.