Timberline Mountain · United States
Upper White Lightning
Black (advanced)
54
Very good
612 m
Length
192 m
Vertical drop
1284 m
Starts at
1092 m
Ends at
30.7%
Avg gradient
41.4%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Upper White Lightning is a black (advanced) run at Timberline Mountain measuring 612 m, dropping 192 m from 1284 m down to 1092 m. It averages a 30.7% gradient, steepening to around 41.4% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 54/100 — Very good
Vertical6/30
Length3/25
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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