Here is my Brompton M6R at Le Casset near Le Monêtier Les Bains in the Hautes Alpes. You would think that it would be all downhill from here to the town of Briançon, but oddly enough there is quite a bit of uphill too. Perfectly Bromptonable though.
The photo is looking up towards the Col du Lautaret which is a mountain pass at more than 2000m altitude. I should aim to get up there on my Brompton.