www.cycling-challenge.com/piemonte-col-hunting-along-the-french-border/

This region is a gold mine for great super-high unpaved cycling climbs (Colle dell’Assietta is just above where I started). Today’s ride is by no means the toughest or the best of this high altitude Mecca, but I had a blast checking off high cols, and visiting little lakes on super quiet roads.

sounds rough but doable on a gravel bike