Altigraphs
1

Col de Cou

Southern ascent from Saint-Jeoire — the hardest of the 2 ways up
2 ways up
From Saint-Jeoire 24.2 km · 3.0% From Boëge 11.3 km · 3.5%
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Elevation profile

584 m → 1116 m
0–4% 4–6% 6–8% 8–10% 10–14% 14%+
Steepest kilometre: km 3 at 6.4% — peaks at 15.1%
Elevation inside a tunnel is unreliable — the survey reads the mountain above the road, not the road. Report a tunnel

Climb stats

718 m Ascent
24.24 km Length
2.96% Average
19% Maximum
1116 m Summit altitude
101 Difficulty

Kilometre by kilometre

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Km Altitude Gain Average Max Gradient
1 632 m +48 m 4.8% 10%
2 668 m +36 m 3.6% 7%
3 719 m +64 m 6.4% 19%
4 767 m +48 m 4.8% 9%
5 794 m +26 m 2.6% 6%
6 828 m +37 m 3.7% 8%
7 858 m +31 m 3.1% 9%
8 878 m +20 m 2% 4%
9 884 m +7 m 0.7% 3%
10 890 m +6 m 0.6% 2%

Route map

Paved Unpaved Cobblestone Unknown
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Photos

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Rider notes

What it is actually like, from people who have ridden it
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How hard is 101?

Difficulty score is length × gradient, weighted for the steepest kilometre.

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Conditions at the summit

15°
Partly cloudy · feels like 15°
Wind 5 km/h SE
Updated 1 min ago
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