La Roche Merveilleuse
Key facts
- Distance
- 14.8 km
- Ascent
- +600 m
- Descent
- −616 m
- Estimated time
- 4 hr 35
- hiking
- Difficulty
- Difficult
- official rating
- Route
- Loop
- back to the start
Official time: 6 h
Profile and gradient
- under 10%
- 10 to 20%
- over 20%
Gradient along the route: 11.1 km under 10%, 3.3 km at 10 to 20% and 0.4 km over 20%. Elevation from 476 m to 925 m over 14.8 km.
Surface and path types
- Surface
- Paved 9%
- Dirt & gravel 89%
- Unknown 2%
- Path types
- Trail 56%
- Track 35%
- Road 8%
- Off-network 1%
Difficulty
Official rating: difficult, by Département de l'Ain.
Getting there
Start: Parking de l'embarcadère, Nantua, Nantua (01).
Sources
- Track: Département de l'Ain, PDIPR, Licence Ouverte 2.0, Licence Ouverte 2.0 (Etalab) (departement-ain.opendata.arcgis.com/datasets/ain::pdipr-itineraire). Time estimated by GPX Path with the Mac app rule, breaks not included.
- Official time: 6 h, departement-ain.opendata.arcgis.com
- Surface and path types: © OpenStreetMap contributors, ODbL, extract of 28 October 2026, matched to the track every 10 m (openstreetmap.org/copyright)
- Official elevation gain: 600 m, Département de l'Ain
Nearby tracks

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