Les 3 Vallées · France
Chanrossa
Black (advanced)Grooming: backcountry
59
Excellent
1.4 km
Length
329 m
Vertical drop
2442 m
Starts at
2113 m
Ends at
23.1%
Avg gradient
57.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Chanrossa is a black (advanced) run at Les 3 Vallées measuring 1.4 km, dropping 329 m from 2442 m down to 2113 m. It averages a 23.1% gradient, steepening to around 57.7% 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 900 m in.
Bonvo Slope Score: 59/100 — Excellent
Vertical11/30
Length7/25
Gradient character25/25
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
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