Le Semnoz · France
Dahu
Double black (expert)Grooming: backcountry
33
Enjoyable
514 m
Length
101 m
Vertical drop
1678 m
Starts at
1577 m
Ends at
19.2%
Avg gradient
45.1%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Dahu is a double black (expert) run at Le Semnoz measuring 514 m, dropping 101 m from 1678 m down to 1577 m. It averages a 19.2% gradient, steepening to around 45.1% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 33/100 — Enjoyable
Vertical3/30
Length3/25
Gradient character7/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a double black (expert) run should feel like, so every difficulty class can reach 100. Methodology
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