Altigraphs
HC

Col du Mont-Cenis

South-eastern ascent from Susa — the hardest of the 4 ways up

Elevation profile

484 m → 2096 m
0–4% 4–6% 6–8% 8–10% 10–14% 14%+
Steepest kilometre: km 4 at 9.5% — peaks at 16.3%
Elevation inside a tunnel is unreliable — the survey reads the mountain above the road, not the road. Report a tunnel

Climb stats

1724 m Ascent
31.23 km Length
5.52% Average
48% Maximum
2065 m Summit altitude
346 Difficulty

Kilometre by kilometre

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Km Altitude Gain Average Max Gradient
1 496 m +14 m 1.4% 7%
2 540 m +48 m 4.8% 29%
3 605 m +73 m 7.3% 34%
4 688 m +95 m 9.5% 27%
5 764 m +91 m 9.1% 26%
6 852 m +91 m 9.1% 33%
7 932 m +85 m 8.5% 29%
8 1020 m +89 m 8.9% 26%
9 1076 m +76 m 7.6% 26%
10 1091 m +52 m 5.2% 25%

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 346?

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

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Conditions at the summit

Partly cloudy · feels like 6°
Wind 9 km/h NW
Updated Just now
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