Tramelan · Switzerland
La Rouge-Noire
Black (advanced)
42
Very good
823 m
Length
150 m
Vertical drop
1192 m
Starts at
1042 m
Ends at
18.1%
Avg gradient
37.9%
Max gradient
sustained 50 m
Elevation profile
Run analysis
La Rouge-Noire is a black (advanced) run at Tramelan measuring 823 m, dropping 150 m from 1192 m down to 1042 m. It averages a 18.1% gradient, steepening to around 37.9% 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 775 m in.
Bonvo Slope Score: 42/100 — Very good
Vertical5/30
Length4/25
Gradient character17/25
Flow16/20
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
Explore La Rouge-Noire on the map
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