Quelfénnec

A Neolithic dolerite quarry in the commune of Plussulien, Cotes-d'Armor, Brittany, discovered in 1964 by prehistorian Charles-Tanguy Le Roux and excavated until 1976. Active from approximately 3500 to 1800 BC, the quarry produced an estimated 5,000 polished stone axes per year along with other tools. Axes from Quelfennec have been found throughout western France from Normandy to Languedoc, as well as in the British Isles and Belgium, demonstrating extensive Neolithic trade networks. The site preserves polissoirs (polishing boulders) used to shape and sharpen the stone axes.