Alpe d'Huez Grand Domaine · France
Roche Noire
Black (advanced)
54
Very good
488 m
Length
198 m
Vertical drop
1578 m
Starts at
1380 m
Ends at
39.7%
Avg gradient
61.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Roche Noire is a black (advanced) run at Alpe d'Huez Grand Domaine measuring 488 m, dropping 198 m from 1578 m down to 1380 m. It averages a 39.7% gradient, steepening to around 61.7% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 54/100 — Very good
Vertical7/30
Length2/25
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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