Altigraphs
1

Col de Dyane

Western ascent from La Bourboule — the hardest of the 2 ways up
2 ways up
From La Bourboule 18.1 km · 4.3% From Starting point unknown 5.5 km · 6.1%
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Elevation profile

853 m → 1450 m
0–4% 4–6% 6–8% 8–10% 10–14% 14%+
Steepest kilometre: km 13 at 7.9% — peaks at 12.4%
Elevation inside a tunnel is unreliable — the survey reads the mountain above the road, not the road. Report a tunnel

Climb stats

781 m Ascent
18.14 km Length
4.31% Average
13% Maximum
1450 m Summit altitude
146 Difficulty

Kilometre by kilometre

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Km Altitude Gain Average Max Gradient
1 927 m +75 m 7.5% 9%
2 1003 m +76 m 7.6% 13%
3 1057 m +54 m 5.4% 9%
4 1126 m +69 m 6.9% 11%
5 1174 m +49 m 4.9% 10%
6 1177 m +9 m 0.9% 3%
7 1156 m +0 m 0% 0%
8 1106 m +0 m 0% 0%
9 1140 m +35 m 3.5% 8%
10 1135 m +14 m 1.4% 6%

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 146?

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

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Conditions at the summit

12°
Clear · feels like 10°
Wind 12 km/h W
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