Les 3 Vallées · France

Roc de Fer

Blue (easy)
74

Outstanding

3.1 km
Length
695 m
Vertical drop
2284 m
Starts at
1589 m
Ends at
22.5%
Avg gradient
42%
Max gradient
sustained 50 m

Elevation profile

1589 m1936 m2284 mstart3.1 km

Run analysis

Roc de Fer is a blue (easy) run at Les 3 Vallées measuring 3.1 km, dropping 695 m from 2284 m down to 1589 m. It averages a 22.5% gradient, steepening to around 42% at its most sustained pitch.

Heads-up for snowboarders: 2 uphill sections along this run — expect some unstrapping or skating.

Watch for 2 uphill sections: 75 m of climb about 0 m in; 50 m of climb about 825 m in.

Bonvo Slope Score: 74/100 — Outstanding

Vertical23/30
Length15/25
Gradient character24/25
Flow12/20

Scored from the run's real geometry — steepness is judged against what a blue (easy) run should feel like, so every difficulty class can reach 100. Methodology

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