Les Sybelles · France
Grand Truc
Red (intermediate)Grooming: classic
63
Excellent
1.7 km
Length
396 m
Vertical drop
2180 m
Starts at
1784 m
Ends at
22.5%
Avg gradient
45.1%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Grand Truc is a red (intermediate) run at Les Sybelles measuring 1.7 km, dropping 396 m from 2180 m down to 1784 m. It averages a 22.5% gradient, steepening to around 45.1% 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
Vertical13/30
Length9/25
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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