Bolton Valley Resort · United States
Spillway Lane
Red (intermediate)
47
Very good
120 m
Length
28 m
Vertical drop
940 m
Starts at
911 m
Ends at
22.5%
Avg gradient
29.4%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Spillway Lane is a red (intermediate) run at Bolton Valley Resort measuring 120 m, dropping 28 m from 940 m down to 911 m. It averages a 22.5% gradient, steepening to around 29.4% 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
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