Portes du Soleil · France
Combe du Machon
Black (advanced)
59
Excellent
692 m
Length
312 m
Vertical drop
2187 m
Starts at
1874 m
Ends at
44.6%
Avg gradient
100.3%
Max gradient
sustained 50 m
Elevation profile
Run analysis
Combe du Machon is a black (advanced) run at Portes du Soleil measuring 692 m, dropping 312 m from 2187 m down to 1874 m. It averages a 44.6% gradient, steepening to around 100.3% at its most sustained pitch.
Snowboard-friendly: no significant flat or uphill sections detected along the descent.
Bonvo Slope Score: 59/100 — Excellent
Vertical10/30
Length3/25
Gradient character25/25
Flow20/20
Scored from the run's real geometry — steepness is judged against what a black (advanced) run should feel like, so every difficulty class can reach 100. Methodology
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