Altigraphs
HC Aosta Valley, Italy

Col de Joux

Western ascent from Saint-Vincent
Length
15.7 km
Height gain
1061 m
Average
6.8%
Steepest km
9.2%
Summit altitude
1640 m
Difficulty
218

Elevation profile

578 m → 1642 m Touch or hover to inspect
0–4% 4–6% 6–8% 8–10% 10–14% 14%+
Steepest km: km 10 at 9.2%

Climb analysis

Where the climbing is

0–4%
1.8 km
4–6%
3.5 km
6–8%
6.2 km
8–10%
3.3 km
10–14%
1.0 km
14%+
0.0 km

Hardest sustained

1 km · km 9.1–10.1
9.4%
2 km · km 8.1–10.1
8.4%
5 km · km 1.3–6.3
7.7%

Time to the top

1h 16 at 3 W/kg · 70 kg rider + 8 kg bike, no wind

Kilometre by kilometre

Export CSV
Km Altitude Gradient 0–15%
1 626 m 4.8%
2 696 m 7.0%
3 773 m 7.7%
4 855 m 8.1%
5 915 m 6.0%
6 990 m 7.5%
7 1071 m 8.2%
8 1112 m 4.1%
9 1185 m 7.2%
10 1276 m 9.2%

Route map

Two fingers to pan
Road surface not mapped yet Report a road type
No tunnels mapped Map a tunnel

At the summit now

Updated Just now
10° Clear Feels like 7° · 1640 m
Headwind on 44% of the climb · Wind 6 km/h E
Tailwind 16% Crosswind 40% Headwind 44%

How hard is 218?

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

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Added by altigraphs · 1 contributor

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