Mount Washington Alpine Resort · Canada
Thunderdome
Double black (expert)Grooming: backcountry
44
Very good
534 m
Length
132 m
Vertical drop
1456 m
Starts at
1323 m
Ends at
24.1%
Avg gradient
51.9%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Thunderdome is a double black (expert) run at Mount Washington Alpine Resort measuring 534 m, dropping 132 m from 1456 m down to 1323 m. It averages a 24.1% gradient, steepening to around 51.9% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 44/100 — Very good
Vertical4/30
Length3/25
Gradient character17/25
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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