Les Sybelles · France
Couloir
Black (advanced)Grooming: mogul
54
Very good
553 m
Length
197 m
Vertical drop
2185 m
Starts at
1988 m
Ends at
34.2%
Avg gradient
73.5%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Couloir is a black (advanced) run at Les Sybelles measuring 553 m, dropping 197 m from 2185 m down to 1988 m. It averages a 34.2% gradient, steepening to around 73.5% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 54/100 — Very good
Vertical7/30
Length3/25
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
Explore Couloir on the map
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