Roc d'Enfer · France
La Grande Terche
Unrated
55
Excellent
661 m
Length
193 m
Vertical drop
1437 m
Starts at
1244 m
Ends at
28.6%
Avg gradient
45.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
La Grande Terche is a unrated run at Roc d'Enfer measuring 661 m, dropping 193 m from 1437 m down to 1244 m. It averages a 28.6% gradient, steepening to around 45.7% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 55/100 — Excellent
Vertical6/30
Length3/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a unrated run should feel like, so every difficulty class can reach 100. Methodology
Explore La Grande Terche on the map
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