Hillberg Ski Area · United States
Ptarmigan Face
Black (advanced)
46
Very good
99 m
Length
25 m
Vertical drop
111 m
Starts at
87 m
Ends at
24.8%
Avg gradient
31.6%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Ptarmigan Face is a black (advanced) run at Hillberg Ski Area measuring 99 m, dropping 25 m from 111 m down to 87 m. It averages a 24.8% gradient, steepening to around 31.6% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 46/100 — Very good
Vertical1/30
Length0/25
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
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