www.cycling-challenge.com/alpe-dhuez-oulles-and-col-dornon/

Oulles is the commune with the lowest population (12!) in the Isère Department. 8 kilometres cut into the edge of a steep gorge up to a little perched village. It’s a well surfaced road, with hairpins galore. And quiet: I saw no cars on the ascent or the descent. It’s quite steep.