This actually is a combination of the ascent to the Col de la Machine from St-Laurent-en-Royans and the continuation to the Col de Carri. Depending on your mood, the first part can be replaced by the parallel climb from St-Jean-en-Royans to the Col de la Machine, which on this website forms the first part of an ascent to the Col de Chaud Clapier. I was a little disappointed by this trip. The road, especially up to the Col de la Machine, is quiet but broad and virtually without a view of the lots of fantastic, steep and colored rock faces of the Vercors. During the first 11.5 kilometers from St-Laurent, 772 elevation meters are climbed, on a road that leads continuously upward, but with a strongly varying slope. The steepest kilometer (10.3%) begins about four kilometers after the start. After these first 11.5 kilometers of climbing, there is an alternation of up- and down-going sections until the Col de la Machine, which, strangely enough, is not a pass at all for cyclists. The remaining seven kilometers to the Col de Carri run through the forest and are definitely not steep (maximum 5%).