Le Couloir Basset 12

Hiking Hard Created at: March 17, 2026

Informations

Distance 19.92 km
Elevation gain 1250 m
Elevation loss 950 m
Altitude minimum 645 m
Altitude maximum 1000 m
Altitude Start 648 m
Altitude End 839 m
Estimated hiking time 7 h
Difficulty Hard

19.92 km loop hiking starting from Oyonnax. Elevation gain is 1250 m, with altitude ranging from 645 m to 1000 m. Estimated time: 7 h. Starting town: Oyonnax (Auvergne-Rhône-Alpes, France).

This hike includes 4 significant climbs. With a total elevation gain of 551 m across 6.50 km, with an average slope of 8.5%.

  • Climb 1 (at km 4.64 km): +91 m over 1.16 km, average slope 7.8%
  • Climb 2 (at km 11.36 km): +180 m over 1.79 km, average slope 10.1%
  • Climb 3 (at km 17.99 km): +115 m over 1.10 km, average slope 10.4%
  • Climb 4 (at km 22.71 km): +165 m over 2.45 km, average slope 6.7%

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