Portes du Soleil · France
Onnaz
Red (intermediate)
47
Very good
455 m
Length
146 m
Vertical drop
1845 m
Starts at
1698 m
Ends at
30.4%
Avg gradient
57.6%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Onnaz is a red (intermediate) run at Portes du Soleil measuring 455 m, dropping 146 m from 1845 m down to 1698 m. It averages a 30.4% gradient, steepening to around 57.6% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Watch for an uphill section: 25 m of climb about 425 m in.
Bonvo Slope Score: 47/100 — Very good
Vertical5/30
Length2/25
Gradient character24/25
Flow16/20
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
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