Buttermilk · United States
Big Face Hollow
Red (intermediate)Grooming: classic
65
Excellent
1.7 km
Length
356 m
Vertical drop
3005 m
Starts at
2649 m
Ends at
20.6%
Avg gradient
36.5%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Big Face Hollow is a red (intermediate) run at Buttermilk measuring 1.7 km, dropping 356 m from 3005 m down to 2649 m. It averages a 20.6% gradient, steepening to around 36.5% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 65/100 — Excellent
Vertical12/30
Length9/25
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 Big Face Hollow on the map
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