Les 3 Vallées · France
Dou des Lanches
Black (advanced)Grooming: classic
64
Excellent
1.3 km
Length
391 m
Vertical drop
2253 m
Starts at
1862 m
Ends at
30.6%
Avg gradient
65.1%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Dou des Lanches is a black (advanced) run at Les 3 Vallées measuring 1.3 km, dropping 391 m from 2253 m down to 1862 m. It averages a 30.6% gradient, steepening to around 65.1% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 64/100 — Excellent
Vertical13/30
Length6/25
Gradient character25/25
Flow20/20
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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