Roc d'Enfer · France
Graydon, Graydon bis
Blue (easy)Grooming: classic
38
Enjoyable
350 m
Length
97 m
Vertical drop
1653 m
Starts at
1556 m
Ends at
27.7%
Avg gradient
39.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Graydon, Graydon bis is a blue (easy) run at Roc d'Enfer measuring 350 m, dropping 97 m from 1653 m down to 1556 m. It averages a 27.7% gradient, steepening to around 39.7% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 38/100 — Enjoyable
Vertical3/30
Length2/25
Gradient character13/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a blue (easy) run should feel like, so every difficulty class can reach 100. Methodology
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