Les Sybelles · France
J.N. Augert Bas
Black (advanced)Grooming: classic
57
Excellent
625 m
Length
273 m
Vertical drop
1950 m
Starts at
1677 m
Ends at
42.1%
Avg gradient
59.1%
Max gradient
sustained 50 m
Elevation profile
Run analysis
J.N. Augert Bas is a black (advanced) run at Les Sybelles measuring 625 m, dropping 273 m from 1950 m down to 1677 m. It averages a 42.1% gradient, steepening to around 59.1% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 57/100 — Excellent
Vertical9/30
Length3/25
Gradient character25/25
Flow20/20
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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