Circuit des Marais (Petit-Mars)
Key facts
- Distance
- 15.0 km
- Ascent
- +94 m
- Descent
- −91 m
- Estimated time
- 3 hr 30
- hiking ; mtb : 1 hr 15
- Difficulty
- Moderate
- official rating
- Route
- Loop
- back to the start
Official time: 3 h
Profile and gradient
- under 10%
- 10 to 20%
- over 20%
Gradient along the route: 15.0 km under 10%. Elevation from 4 m to 32 m over 15.0 km.
Surface and path types
- Surface
- Paved 44%
- Dirt & gravel 56%
- Path types
- Trail 19%
- Track 37%
- Road 44%
Description
Difficulty
Official rating: moderate, by Département de Loire-Atlantique.
Getting there
Start: Petit-Mars, Petit-Mars (44).
Sources
- Track: Département de Loire-Atlantique, PDIPR, Licence Ouverte 2.0, Licence Ouverte 2.0 (Etalab) (www.erdrecanalforet.fr/fr/20-circuits-de-randonnee.html?mb_page=circuit&mb_id=17356&mb_titre=circuit-les-marais-petit-mars#mb_module). Time estimated by GPX Path with the Mac app rule, breaks not included.
- Official time: 3 h, erdrecanalforet.fr
- Surface and path types: © OpenStreetMap contributors, ODbL, extract of 28 October 2026, matched to the track every 10 m (openstreetmap.org/copyright)
Nearby tracks
Plan IGN © IGN 2026Circuit des Villages (Petit-Mars)Pays de la Loire, Petit-Mars (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Les Marais de Blanche NoëPays de la Loire, Nort-sur-Erdre (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Vive-EvePays de la Loire, Nort-sur-Erdre (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026La ChauminettePays de la Loire, Les Touches (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Les Mines de LanguinPays de la Loire, Nort-sur-Erdre (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026L'Orée du BoisPays de la Loire, Saint-Mars-du-Désert (44) · LoopOfficial rating by Département de Loire-Atlantique