Kirkwood Mountain Resort · United States
The Drain
Black (advanced)
35
Enjoyable
511 m
Length
76 m
Vertical drop
2522 m
Starts at
2445 m
Ends at
14.5%
Avg gradient
23.4%
Max gradient
sustained 50 m
Elevation profile
Run analysis
The Drain is a black (advanced) run at Kirkwood Mountain Resort measuring 511 m, dropping 76 m from 2522 m down to 2445 m. It averages a 14.5% gradient, steepening to around 23.4% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 35/100 — Enjoyable
Vertical3/30
Length3/25
Gradient character9/25
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 The Drain on the map
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