Cat 4 D12

Col du Marais from Thônes

Rhone-Alpes, france

The D12 rises 6.8km through rolling hills and mountain roads, gaining 220m to 843m. The average gradient of 3.2% disguises ramps of 7.9% — the kind of gradient that turns plans into prayers. Located in Rhone-Alpes, France.

  • Longer than 86% of climbs in France.
  • A false flat around km 2 offers brief respite before the road kicks up again.

Col du Marais from Thônes

Rhone-Alpes, france

6.8km 220m 3.2%
4

Distance

6.8km

Avg Gradient

3.2%

Max Gradient

7.9%

Elevation Gain

220m

Summit

843m

Wall Rating

2.8

What things cost

Typical prices in France

€3.20

Coffee

€6.00

Beer

€15.00

Meal

€1.80

Water

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Common Questions

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