From Plainfaing
Minor road
Col du Bonhomme, 949 m, in Haut-Rhin. Main climb: 4.1 km at 9.1% average, 377 m of climbing from Plainfaing.
Figures for the main climb (From Plainfaing). The other climbs are further down.
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Plainfaing | 4.1 km | 377 m | — | 9.1 % | 15.6 % | 3.4 Moderate |
| From Lapoutroie | 13.3 km | 611 m | 19 m | 4.6 % | 9.1 % | 2.6 Moderate |
| From Fraize | 7.7 km | 395 m | — | 5.1 % | 8.8 % | 2.0 Easy |
| From Sainte-Marie-aux-Mines | 18.1 km | 754 m | 180 m | 4.2 % | 9.8 % | 1.8 Easy |
Scroll the table sideways to see every column.
Minor road
Main road
Main road
Departmental road
4 ascents proposed here — other ways up this col remain possible.
Distances and elevation gains derived from the OpenStreetMap road network and a digital terrain model, measured on the very profile shown here.
Figures computed on 7 September 2026.
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
The hardest climb of Col du Bonhomme, from Plainfaing, is 4.1 km long for 377 m of ascent, i.e. 9.1% average.
The steepest 500 m sits at 15.6%, and the hardest kilometre is the 4th, at 13.7%.
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