Galibier Thabor · France
Grandes Drozes
Black (advanced)
65
Excellent
1.1 km
Length
424 m
Vertical drop
2025 m
Starts at
1601 m
Ends at
38.6%
Avg gradient
55.8%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Grandes Drozes is a black (advanced) run at Galibier Thabor measuring 1.1 km, dropping 424 m from 2025 m down to 1601 m. It averages a 38.6% gradient, steepening to around 55.8% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 65/100 — Excellent
Vertical14/30
Length5/25
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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