circuit des marais (St-Philbert-de-Grand-Lieu)
Key facts
- Distance
- 14.7 km
- Ascent
- +7 m
- Descent
- −5 m
- Estimated time
- 3 hr 15
- hiking ; mtb : 1 hr 05
- Difficulty
- Moderate
- official rating
- Route
- Loop
- back to the start
Official time: 3 h 30 min
Profile and gradient
- under 10%
- 10 to 20%
- over 20%
Gradient along the route: 14.7 km under 10%. Elevation from 2 m to 12 m over 14.7 km.
Surface and path types
- Surface
- Paved 35%
- Dirt & gravel 63%
- Unknown 2%
- Path types
- Trail 24%
- Track 40%
- Road 35%
- Off-network 1%
Difficulty
Official rating: moderate, by Département de Loire-Atlantique.
Getting there
Start: Saint-Philbert-de-Grand-Lieu, Saint-Philbert-de-Grand-Lieu (44).
Sources
- Track: Département de Loire-Atlantique, PDIPR, Licence Ouverte 2.0, Licence Ouverte 2.0 (Etalab) (data.loire-atlantique.fr/explore/dataset/224400028_itineraires-de-promenade-et-de-randonnee-en-loire-atlantique-pdipr/). Time estimated by GPX Path with the Mac app rule, breaks not included.
- Official time: 3 h 30 min, data.loire-atlantique.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 DéasPays de la Loire, Saint-Philbert-de-Grand-Lieu (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit le Gué de la LognePays de la Loire, Saint-Philbert-de-Grand-Lieu (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit des JamonnièresPays de la Loire, Saint-Philbert-de-Grand-Lieu (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit EclogitePays de la Loire, Saint-Philbert-de-Grand-Lieu (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit les VignesPays de la Loire, Saint-Philbert-de-Grand-Lieu (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit des Hauts du LacPays de la Loire, Saint-Philbert-de-Grand-Lieu (44) · LoopOfficial rating by Département de Loire-Atlantique