Chamrousse · France
Vallons
Black (advanced)
57
Excellent
849 m
Length
244 m
Vertical drop
2039 m
Starts at
1795 m
Ends at
28.6%
Avg gradient
54.5%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Vallons is a black (advanced) run at Chamrousse measuring 849 m, dropping 244 m from 2039 m down to 1795 m. It averages a 28.6% gradient, steepening to around 54.5% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 57/100 — Excellent
Vertical8/30
Length4/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a black (advanced) run should feel like, so every difficulty class can reach 100. Methodology
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