Afton Alps · United States
Annie's Alley
Red (intermediate)Grooming: classic
41
Very good
114 m
Length
12 m
Vertical drop
241 m
Starts at
229 m
Ends at
9.4%
Avg gradient
19.2%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Annie's Alley is a red (intermediate) run at Afton Alps measuring 114 m, dropping 12 m from 241 m down to 229 m. It averages a 9.4% gradient, steepening to around 19.2% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 41/100 — Very good
Vertical0/30
Length1/25
Gradient character20/25
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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