The flint at Krzemionki was exploited from the 4th millennium through the middle of the 2nd millennium BCE (3000-1600 BCE [REF].) by people of the Linearbandkeramik, Globular Amphora and Mierzanowice Cultures who excavated flint mainly by hatchets [REF].
In following centuries, the Krzemionki mining district was only sporadically visited.