L'Alpe du Grand Serre · France
Serriou
Red (intermediate)
48
Very good
262 m
Length
54 m
Vertical drop
1620 m
Starts at
1566 m
Ends at
19.8%
Avg gradient
36%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Serriou is a red (intermediate) run at L'Alpe du Grand Serre measuring 262 m, dropping 54 m from 1620 m down to 1566 m. It averages a 19.8% gradient, steepening to around 36% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 48/100 — Very good
Vertical2/30
Length1/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a red (intermediate) run should feel like, so every difficulty class can reach 100. Methodology
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