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Chamonix area
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Les Bossons
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Roc des Os
Roc des Os
9
routes
6a – 6c
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Routes
· 9 routes
All
Easy
Intermediate
Hard
Elite
1
Vamos
Trad
6a
2
Ostrogoth
Trad
6a+
3
Pathos
Trad
6c
4
Ostralopithèque variant
Trad
6c
5
Ostralopithèque
Trad · 1 ascent
6a
6
Osso Buco
Trad · 1 ascent
6b
7
Raspa populos
Trad · 1 ascent
6a+
8
Molosse
Trad
6c
9
Logos
Trad · 1 ascent
6a+