Motorcycle Ride Planner · Switzerland
N21;21 — Ollomont to Chamonix-Mont-Blanc
Switzerland · measured from OpenStreetMap geometry
416Corners
11.3Miles
37Per mile
N21;21 runs 11.3 miles between Ollomont and Chamonix-Mont-Blanc. We counted 416 corners along it, which works out at 37 a mile — consistently twisty. It runs past mountain peaks, a mountain pass, cliffs and a river. That is about typical for Switzerland, where the median is 34.8 a mile.
Ridden together with N21;21 and SS27 it makes about 12 more miles of the same kind of road.
Roads near here
- N21;210 mi away · 261 corners
- SS277 mi away · 324 corners
- SS2710 mi away · 148 corners
- 20311 mi away · 237 corners
- SR2812 mi away · 285 corners
- Route d'Émosson15 mi away · 300 corners
How we measured it
Corner counts come from the road's own geometry in OpenStreetMap, not from ratings or votes. Every bend above a threshold of curvature is counted once, so two roads can be compared directly. Nothing here is crowdsourced and nobody paid to appear.