Les Sybelles · France
Perdrix
Black (advanced)
56
Excellent
985 m
Length
314 m
Vertical drop
2266 m
Starts at
1951 m
Ends at
31.4%
Avg gradient
71.3%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Perdrix is a black (advanced) run at Les Sybelles measuring 985 m, dropping 314 m from 2266 m down to 1951 m. It averages a 31.4% gradient, steepening to around 71.3% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Watch for an uphill section: 25 m of climb about 0 m in.
Bonvo Slope Score: 56/100 — Excellent
Vertical10/30
Length5/25
Gradient character25/25
Flow16/20
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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