Le Grand Bornand · France
Les Lanches
Red (intermediate)
40
Very good
573 m
Length
214 m
Vertical drop
1978 m
Starts at
1765 m
Ends at
37.1%
Avg gradient
59.8%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Les Lanches is a red (intermediate) run at Le Grand Bornand measuring 573 m, dropping 214 m from 1978 m down to 1765 m. It averages a 37.1% gradient, steepening to around 59.8% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 40/100 — Very good
Vertical7/30
Length3/25
Gradient character10/25
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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