Big Sky Resort · United States
Blackrock Gully
Black (advanced)Grooming: backcountry
50
Very good
245 m
Length
121 m
Vertical drop
2917 m
Starts at
2796 m
Ends at
48.2%
Avg gradient
79.6%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Blackrock Gully is a black (advanced) run at Big Sky Resort measuring 245 m, dropping 121 m from 2917 m down to 2796 m. It averages a 48.2% gradient, steepening to around 79.6% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 50/100 — Very good
Vertical4/30
Length1/25
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 Blackrock Gully on the map
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