Les Sybelles · France
Louis Buisson
Red (intermediate)Grooming: classic
63
Excellent
1.7 km
Length
420 m
Vertical drop
2177 m
Starts at
1757 m
Ends at
24.6%
Avg gradient
45.6%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Louis Buisson is a red (intermediate) run at Les Sybelles measuring 1.7 km, dropping 420 m from 2177 m down to 1757 m. It averages a 24.6% gradient, steepening to around 45.6% 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: 63/100 — Excellent
Vertical14/30
Length8/25
Gradient character25/25
Flow16/20
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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