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Running trails & routes

Mont Aigu – Grotte du Serment loop from Fontainebleau

Running trails & routes

Mont Aigu – Grotte du Serment loop from Fontainebleau

Hard

4.8

(5)

159

runners

Mont Aigu – Grotte du Serment loop from Fontainebleau

02:06

17.5km

170m

Running

Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required. The starting point of the route is accessible with public transport.

Last updated: August 24, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Réserve biologique dirigée des Platières de Franchard (Mare aux pigeons)

Réserve de biosphère de Fontainebleau et du Gâtinais

Waypoints

A

Start point

Bus stop

1

5.01 km

Mont Aigu

Highlight • Summit

Mont Aigu culminates at 123 meters above sea level and offers a beautiful panorama over the forest of Fontainebleau. The opportunity to accumulate a little elevation or to do some hill training.

Translated by Google •

Tip by

2

5.53 km

Grotte du Serment

Highlight • Gorge

The Oath Cave is quite surprising, especially because the vault is made of a single rock. The letters D.F.D were engraved on the cave by Denecourt himself and mean "Last Folie Denecourt".

Translated by Google •

Tip by

3

8.96 km

Franchard Well

Highlight • Monument

This well was built in 1813 at the request of Napoleon 1st. It is the only one remaining in the forest of Fontainebleau.

Translated by Google •

Tip by

4

9.62 km

Franchard Viewpoint

Highlight • Other

Beautiful view over the franchard area.

Tip by

5

9.70 km

Panorama

Highlight • Viewpoint

Here, you can enjoy a superb panorama over the forest of Fontainebleau. It's nice to take a little break in front of such a beautiful view!

Translated by Google •

Tip by

6

11.2 km

Narrow passage under rock

Highlight • Other

7

11.8 km

Marie Stuart viewpoint

Highlight • Other

8

13.5 km

Quarry troll sculpture

Highlight • Monument

A troll has settled in this disused quarry. Will you greet him?

Translated by Google •

Tip by

B

17.5 km

End point

Bus stop

Way Types & Surfaces

Way Types

8.43 km

5.00 km

3.37 km

593 m

104 m

< 100 m

Surfaces

8.02 km

7.36 km

1.29 km

597 m

178 m

102 m

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Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (130 m)

Lowest point (80 m)

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Weather

Powered by Foreca

Sunday 18 October

16°C

1°C

17 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

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