Alpe d'Huez Grand Domaine · France
Tunnel
Black (advanced)Grooming: backcountry
50
Very good
247 m
Length
112 m
Vertical drop
3249 m
Starts at
3137 m
Ends at
44.7%
Avg gradient
63.4%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Tunnel is a black (advanced) run at Alpe d'Huez Grand Domaine measuring 247 m, dropping 112 m from 3249 m down to 3137 m. It averages a 44.7% gradient, steepening to around 63.4% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 50/100 — Very good
Vertical4/30
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
Explore Tunnel on the map
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