Les 3 Vallées · France
Roches Grises
Red (intermediate)Grooming: backcountry
53
Very good
820 m
Length
241 m
Vertical drop
2678 m
Starts at
2437 m
Ends at
28.9%
Avg gradient
60.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Roches Grises is a red (intermediate) run at Les 3 Vallées measuring 820 m, dropping 241 m from 2678 m down to 2437 m. It averages a 28.9% gradient, steepening to around 60.7% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Watch for an uphill section: 25 m of climb about 0 m in.
Bonvo Slope Score: 53/100 — Very good
Vertical8/30
Length4/25
Gradient character25/25
Flow16/20
Scored from the run's real geometry — steepness is judged against what a red (intermediate) run should feel like, so every difficulty class can reach 100. Methodology
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