Brévent/Flégère (Chamonix) · France
Libellules
Green (beginner)Grooming: classic
55
Excellent
928 m
Length
164 m
Vertical drop
1916 m
Starts at
1752 m
Ends at
17.2%
Avg gradient
32.2%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Libellules is a green (beginner) run at Brévent/Flégère (Chamonix) measuring 928 m, dropping 164 m from 1916 m down to 1752 m. It averages a 17.2% gradient, steepening to around 32.2% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 55/100 — Excellent
Vertical5/30
Length5/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a green (beginner) run should feel like, so every difficulty class can reach 100. Methodology
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