Breckenridge · United States
Mine Shaft
Double black (expert)Grooming: backcountry
52
Very good
385 m
Length
159 m
Vertical drop
3392 m
Starts at
3232 m
Ends at
39.8%
Avg gradient
51.5%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Mine Shaft is a double black (expert) run at Breckenridge measuring 385 m, dropping 159 m from 3392 m down to 3232 m. It averages a 39.8% gradient, steepening to around 51.5% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 52/100 — Very good
Vertical5/30
Length2/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a double black (expert) run should feel like, so every difficulty class can reach 100. Methodology
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