Zinal / Grimentz · Switzerland
Couloirs supérieure
Black (advanced)Grooming: classic
40
Very good
183 m
Length
38 m
Vertical drop
2795 m
Starts at
2757 m
Ends at
18.8%
Avg gradient
25.8%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Couloirs supérieure is a black (advanced) run at Zinal / Grimentz measuring 183 m, dropping 38 m from 2795 m down to 2757 m. It averages a 18.8% gradient, steepening to around 25.8% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 40/100 — Very good
Vertical1/30
Length1/25
Gradient character18/25
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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