Les 3 Vallées · France
Praméruel-Grandes Bosses
Blue (easy)
55
Excellent
878 m
Length
169 m
Vertical drop
2097 m
Starts at
1929 m
Ends at
18.7%
Avg gradient
32.8%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Praméruel-Grandes Bosses is a blue (easy) run at Les 3 Vallées measuring 878 m, dropping 169 m from 2097 m down to 1929 m. It averages a 18.7% gradient, steepening to around 32.8% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 55/100 — Excellent
Vertical6/30
Length4/25
Gradient character25/25
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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