Circuit de l'Agrion de mercure
Key facts
- Distance
- 7.5 km
- Ascent
- +12 m
- Descent
- −13 m
- Estimated time
- 1 hr 40
- hiking
- Difficulty
- Easy
- official rating
- Route
- Loop
- back to the start
Official time: 1 h 45 min
Profile and gradient
- under 10%
- 10 to 20%
- over 20%
Gradient along the route: 7.5 km under 10%. Elevation from 3 m to 17 m over 7.5 km.
Surface and path types
- Surface
- Paved 54%
- Dirt & gravel 41%
- Unknown 5%
- Path types
- Trail 1%
- Track 40%
- Road 54%
- Off-network 5%
Description
Difficulty
Official rating: easy, by Département de Loire-Atlantique.
Getting there
Start: La Chapelle-Heulin, La Chapelle-Heulin (44).
Sources
- Track: Département de Loire-Atlantique, PDIPR, Licence Ouverte 2.0, Licence Ouverte 2.0 (Etalab) (www.levignobledenantes-tourisme.com/circuit-et-randonnee/boucle-circuit-de-lagrion-de-mercure/). Time estimated by GPX Path with the Mac app rule, breaks not included.
- Official time: 1 h 45 min, levignobledenantes-tourisme.com
- 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 de la SèvrePays de la Loire, Le Pallet (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit de la SanguèzePays de la Loire, Le Pallet (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit des Moulins et ChâteauxPays de la Loire, La Haie-Fouassière (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit des Marais (Haute-Goulaine)Pays de la Loire, Haute-Goulaine (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit des PiliersPays de la Loire, Le Landreau (44) · LoopOfficial rating by Département de Loire-Atlantique
Plan IGN © IGN 2026Circuit entre Sèvre et coteauxPays de la Loire, La Haie-Fouassière (44) · LoopOfficial rating by Département de Loire-Atlantique