Mt Seymour · Canada
Backdoor
Red (intermediate)
41
Very good
216 m
Length
20 m
Vertical drop
1218 m
Starts at
1197 m
Ends at
9%
Avg gradient
17.1%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Backdoor is a red (intermediate) run at Mt Seymour measuring 216 m, dropping 20 m from 1218 m down to 1197 m. It averages a 9% gradient, steepening to around 17.1% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 41/100 — Very good
Vertical1/30
Length1/25
Gradient character19/25
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 Backdoor on the map
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