Buttermilk · United States
Ptarmigan Glade
Black (advanced)
57
Excellent
815 m
Length
241 m
Vertical drop
2918 m
Starts at
2677 m
Ends at
29.2%
Avg gradient
39%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Ptarmigan Glade is a black (advanced) run at Buttermilk measuring 815 m, dropping 241 m from 2918 m down to 2677 m. It averages a 29.2% gradient, steepening to around 39% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 57/100 — Excellent
Vertical8/30
Length4/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a black (advanced) run should feel like, so every difficulty class can reach 100. Methodology
Explore Ptarmigan Glade on the map
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