Roc d'Enfer · France
La Grande Terche
Red (intermediate)
61
Excellent
1.2 km
Length
304 m
Vertical drop
1254 m
Starts at
950 m
Ends at
25.8%
Avg gradient
57.8%
Max gradient
sustained 50 m
Elevation profile
Run analysis
La Grande Terche is a red (intermediate) run at Roc d'Enfer measuring 1.2 km, dropping 304 m from 1254 m down to 950 m. It averages a 25.8% gradient, steepening to around 57.8% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 61/100 — Excellent
Vertical10/30
Length6/25
Gradient character25/25
Flow20/20
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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