Summit West · United States
Thunderbolt
Black (advanced)
51
Very good
300 m
Length
122 m
Vertical drop
1148 m
Starts at
1025 m
Ends at
40.7%
Avg gradient
63%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Thunderbolt is a black (advanced) run at Summit West measuring 300 m, dropping 122 m from 1148 m down to 1025 m. It averages a 40.7% gradient, steepening to around 63% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 51/100 — 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 Thunderbolt on the map
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