Thanks both!
Good tips about the colours of fire roads on the map. I’ve just bought a few tiles of the IGN 1:25,000 of Chamonix for viewranger.
Joux Plane is on my list. I’ve ridden the top part on my mountain bike when we dropped down a track near there. Only realised because of all the painted names on the road.
Most of these climbs aren’t very steep compared to Yorkshire and The Peak District – as you say, take it steady and I’ll be fine.
Any less well known, but dramatic ones?
The most likely campsite is this one:
Camping Les Dômes de Miage, 197, route des Contamines, Saint-Gervais-les-Bains 74170, Haute-Savoie, France