Big Sky Resort · United States
Sonny Boy
Red (intermediate)
50
Very good
473 m
Length
72 m
Vertical drop
2681 m
Starts at
2609 m
Ends at
15.2%
Avg gradient
19.6%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Sonny Boy is a red (intermediate) run at Big Sky Resort measuring 473 m, dropping 72 m from 2681 m down to 2609 m. It averages a 15.2% gradient, steepening to around 19.6% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 50/100 — Very good
Vertical2/30
Length2/25
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 Sonny Boy on the map
Loading interactive map…
Ski Sonny Boy with the map in your pocket — offline.
Downloaded resort maps and your own run recording can work without mobile service. Live group positions require connectivity. Free to download; Premium features are available.