How it began
Krzemionki lies on the north-eastern edge of the Świętokrzyskie Mountains in central Poland, on both sides of the Kamienna River. Prehistoric communities living in what is now Poland mined a banded gray stone called striped flint there from about 3900 BCE to 1600 BCE, from the Neolithic into the Early Bronze Age. UNESCO lists four linked sites: the main Krzemionki Opatowskie mining field, the smaller Borownia and Korycizna fields, and the miners' permanent settlement at Gawroniec.
How it works
Miners reached the flint through well over 4,000 shafts and pits. UNESCO records a range of mine types at the site: open-pit, niche-gallery, gallery, pillar-chamber and chamber mines, the widest range of prehistoric flint mining techniques known in a single property. Some great chambers have a floor area of over 500 square meters. Flint was roughed out into axe blanks at workshops beside the shafts, and the Gawroniec settlement received these blanks for finishing and polishing before distribution.
How it spread
Axes of striped flint from Krzemionki have been identified within a radius of about 650 kilometers of the mines, in present-day Germany, the Czech Republic, Slovakia, Ukraine, Belarus and Lithuania. UNESCO calls this the largest recorded range for prehistoric flint axes.
What lasted
UNESCO describes Krzemionki as a landmark in the history of mining and as evidence of the economic and social organization of Neolithic communities built around extracting flint for polished axes. The surface still shows a prehistoric industrial landscape of shaft depressions, waste heaps, workshop remains, miners' camps and routes.
Where it stands today
Most of the mining fields remain unexcavated. The Gawroniec settlement was excavated between 1947 and 1961, and organic remains there were radiocarbon dated to between 3500 and 3200 BCE. The site was inscribed on the World Heritage List in 2019 and is managed by the Krzemionki Archaeological Museum and Reserve. Airborne laser scanning has mapped the fields in three dimensions under forest cover.
