Evasion Mont Blanc · France
Bosses Aigle
Black (advanced)Grooming: mogul
49
Very good
191 m
Length
78 m
Vertical drop
1710 m
Starts at
1632 m
Ends at
38.9%
Avg gradient
52.2%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Bosses Aigle is a black (advanced) run at Evasion Mont Blanc measuring 191 m, dropping 78 m from 1710 m down to 1632 m. It averages a 38.9% gradient, steepening to around 52.2% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 49/100 — Very good
Vertical3/30
Length1/25
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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