Start
OSM map layer · LineString
48.38, 2.53 · rel 1845782
48.38, 2.53 · rel 1845782
Circuit des 25 bosses
A 15,0 km loop walk through alpine terrain and mountains in Seien-et-Marne.
Loop walk
start = finish · Seien-et-Marne
15,0km
Distance
demanding
Climb · estimate
easy
Difficulty · estimate
loop
Shape
27
views
01 · Character of the route
Is this one for you?
Alpine Terrain
Mountains
Summit
Quiet area
Uncrowded
compiled from map data (OSM) and points of interest along the route — no editorial layer
02 · 20 points along the route
What will you encounter?
15× summit
5× Attraction
Le Comptage
summit ·
on the route
0,0 km
0%
Cave
Attraction ·
on the route
0,0 km
0%
Pignon des Poivres
summit ·
on the route
0,3 km
2%
Grotte
Attraction ·
on the route
11,3 km
75%
Platière des Marchais
summit ·
on the route
11,3 km
75%
Justice de Chambergeot
summit ·
on the route
11,3 km
75%
Roche au Four
summit ·
on the route
11,3 km
75%
Ruine
Attraction ·
on the route
15,0 km
100%
Rocher Guichot
summit ·
on the route
15,0 km
100%
Petite Tortue
Attraction ·
on the route
15,0 km
100%
J.A. Martin Pignon Nord
summit ·
on the route
15,0 km
100%
Cimetière aux ânes, Pignon Sud
summit ·
on the route
15,0 km
100%
J.A. Martin Pignon Sud
summit ·
on the route
15,0 km
100%
Ante Pivot
summit ·
on the route
15,0 km
100%
Rocher Cailleau
summit ·
on the route
15,0 km
100%
La Grande Montagne Dalle
summit ·
on the route
15,0 km
100%
Cave
Attraction ·
on the route
15,0 km
100%
Justice de Noisy
summit ·
on the route
15,0 km
100%
Rocher de la Tortue Est
summit ·
on the route
15,0 km
100%
Rocher du Guetteur
summit ·
on the route
15,0 km
100%
03 · Landmarks
Steady waypoints
Quarter of the way
Halfway
Three quarters
Finish
04 · Intersecting routes
Where you meet other trails
05 · From the trail
Through the eyes of hikers
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06 ·
no reports yet
What hikers experienced
Log completion · Start your adventure
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07 · Before you go
Answers to common questions
Circuit des 25 bosses is 15.0 km long.
At an average walking pace, Circuit des 25 bosses takes approximately 3h 45min to complete.
Yes, Circuit des 25 bosses is a round walk that starts and finishes at the same point — no return transport needed.
Circuit des 25 bosses starts near coordinates 48.3807, 2.5469.
Circuit des 25 bosses is a challenging hike that requires a good level of fitness.
Circuit des 25 bosses is maintained and managed by Association des Amis de la Forêt de Fontainebleau.