Alyeska Resort · United States
Sourdough
Red (intermediate)
51
Very good
474 m
Length
106 m
Vertical drop
278 m
Starts at
172 m
Ends at
22.3%
Avg gradient
56.3%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Sourdough is a red (intermediate) run at Alyeska Resort measuring 474 m, dropping 106 m from 278 m down to 172 m. It averages a 22.3% gradient, steepening to around 56.3% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 51/100 — Very good
Vertical4/30
Length2/25
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 Sourdough on the map
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Ski Sourdough with the map in your pocket — offline.
Downloaded resort maps and your own run recording can work without mobile service. Live group positions require connectivity. Free to download; Premium features are available.