L'Alpe du Grand Serre · France
45e parallèle
Blue (easy)
35
Enjoyable
509 m
Length
160 m
Vertical drop
2086 m
Starts at
1926 m
Ends at
30.4%
Avg gradient
40.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
45e parallèle is a blue (easy) run at L'Alpe du Grand Serre measuring 509 m, dropping 160 m from 2086 m down to 1926 m. It averages a 30.4% gradient, steepening to around 40.7% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 35/100 — Enjoyable
Vertical5/30
Length3/25
Gradient character7/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a blue (easy) run should feel like, so every difficulty class can reach 100. Methodology
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