Les 3 Vallées · France
Lanches
Red (intermediate)
50
Very good
375 m
Length
86 m
Vertical drop
2056 m
Starts at
1970 m
Ends at
21.5%
Avg gradient
34.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Lanches is a red (intermediate) run at Les 3 Vallées measuring 375 m, dropping 86 m from 2056 m down to 1970 m. It averages a 21.5% gradient, steepening to around 34.7% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 50/100 — Very good
Vertical3/30
Length2/25
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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