Alyeska Resort · United States
Northwest Passage
Double black (expert)Grooming: backcountry
52
Very good
448 m
Length
139 m
Vertical drop
245 m
Starts at
106 m
Ends at
30.9%
Avg gradient
59.7%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Northwest Passage is a double black (expert) run at Alyeska Resort measuring 448 m, dropping 139 m from 245 m down to 106 m. It averages a 30.9% gradient, steepening to around 59.7% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 52/100 — Very good
Vertical5/30
Length2/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a double black (expert) run should feel like, so every difficulty class can reach 100. Methodology
Explore Northwest Passage on the map
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