Summit West · United States
Thunderbird
Red (intermediate)
47
Very good
140 m
Length
39 m
Vertical drop
1037 m
Starts at
999 m
Ends at
25.7%
Avg gradient
30.4%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Thunderbird is a red (intermediate) run at Summit West measuring 140 m, dropping 39 m from 1037 m down to 999 m. It averages a 25.7% gradient, steepening to around 30.4% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 47/100 — Very good
Vertical1/30
Length1/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a red (intermediate) run should feel like, so every difficulty class can reach 100. Methodology
Explore Thunderbird on the map
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