From Létra
Minor road
Col du Joncin — 698 m
Col du Joncin, 698 m, in Rhône. Main climb: 6.3 km at 6.8% average, 426 m of climbing from Létra.
At a glance
- Distance
- 6.3 km
- Elevation gain
- 426 m
- Average gradient
- 6.8 %
- Difficulty index
- 2.7 Moderate
Figures for the main climb (From Létra). The other climbs are further down.
Location
- Department
- Rhône
- Altitude
- 698 m
- Coordinates
- 45.99858, 4.54597
Map of the climbs
- From Létra
- From Chamelet
- From Porte des Pierres Dorées
- From Chambost-Allières
Cycling ascents
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Létra | 6.3 km | 426 m | 15 m | 6.8 % | 12.0 % | 2.7 Moderate |
| From Chamelet | 5.7 km | 389 m | — | 6.8 % | 12.9 % | 2.6 Moderate |
| From Porte des Pierres Dorées | 12.4 km | 527 m | 38 m | 4.2 % | 10.9 % | 1.9 Easy |
| From Chambost-Allières | 8.2 km | 368 m | 12 m | 4.5 % | 9.0 % | 1.5 Easy |
Scroll the table sideways to see every column.
- 10% and above
- 8 to 10%
- 6 to 8%
- 4 to 6%
- under 4%
From Chamelet
Minor departmental road
From Porte des Pierres Dorées
Departmental road
From Chambost-Allières
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.
Chains with
- Col de la Croix Papin 636 m
- Col du Chêne 704 m
Cols one of the climbs above actually rides over — not merely neighbours as the crow flies.
Cols nearby
- Col de la Croix de Thel 650 m · 7 km
- Col de la Croix Montmain 737 m · 7 km
- Col de la Croix Rosier 721 m · 9 km
- Col du Pilon 727 m · 12 km
- Col de la Croix Paquet 597 m · 12 km
- Col de la Casse Froide 740 m · 14 km
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
Frequently asked questions
How long is the climb to Col du Joncin?
The hardest climb of Col du Joncin, from Létra, is 6.3 km long for 426 m of ascent, i.e. 6.8% average.
What is the steepest part of Col du Joncin?
The steepest 500 m sits at 12.0%, and the hardest kilometre is the 1th, at 10.1%.
Col du Joncin: add this col to your collection
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