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GR®12A

Hiking Very hard Created at: March 17, 2026

Informations

Distance 142.62 km
Elevation gain 3230 m
Elevation loss 3306 m
Altitude minimum 33 m
Altitude maximum 203 m
Altitude Start 203 m
Altitude End 127 m
Estimated hiking time 38 h 30 min
Difficulty Very hard

142.62 km loop hiking starting from Saint-Erme-Outre-et-Ramecourt. Elevation gain is 3230 m, with altitude ranging from 33 m to 203 m. Estimated time: 38 h 30 min. Starting town: Saint-Erme-Outre-et-Ramecourt (Hauts-de-France, France).

This hike includes 1 significant climbs. With a total elevation gain of 1742 m across 36.09 km, with an average slope of 4.8%.

  • Climb 1 (at km 142.37 km): +1742 m over 36.09 km, average slope 4.8%

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