In reply to Nic M: Le Saussois, Surgy, Saffres and Hautroche - all limestone, and Vieux Chateau - granite - come to mind.
Le Saussois and Surgy are N of Clemecy near the river Yonne. Saffres and Hautroche are near Vitteaux, and Vieux Chateau is about 15k east of Avallon.