Palaeolithic people dug into the ground for raw materials. Supplies may have come from nearby sites: Grand Pressigny for the flints at Roc-aux-Sorciers (about 20 km away) and Bergeracois for those at Cap Blanc (50 km); the shelly deposits at Touraine for the shells used in adornments at Roc-aux-Sorciers; pigments and dyestuffs, etc.

But they also came from further afield, such as shells from the shelly deposits at Gironde for Cape Blanc (about 100 km away), or even from the Atlantic and Mediterranean, as certain exogenous flints reveal circulation over large areas or transmission between neighbours.