Afton Alps · United States
Patti's Pass
Red (intermediate)
49
Very good
341 m
Length
58 m
Vertical drop
288 m
Starts at
230 m
Ends at
16.5%
Avg gradient
32.8%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Patti's Pass is a red (intermediate) run at Afton Alps measuring 341 m, dropping 58 m from 288 m down to 230 m. It averages a 16.5% gradient, steepening to around 32.8% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 49/100 — Very good
Vertical2/30
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
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