Buttermilk · United States
Ptarmigan
Red (intermediate)
49
Very good
263 m
Length
66 m
Vertical drop
2722 m
Starts at
2656 m
Ends at
23.9%
Avg gradient
28%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Ptarmigan is a red (intermediate) run at Buttermilk measuring 263 m, dropping 66 m from 2722 m down to 2656 m. It averages a 23.9% gradient, steepening to around 28% 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
Length1/25
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 Ptarmigan on the map
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