See:
- Magdalena Sudoł-Procyk et all, The Chocolate Flint Mines in the Udorka Valley (Częstochowa Upland) – a Preliminary Report on the Field and Lidar Surveys,
Udórz
Nahegelegene Fundstellen
-
Dolina Udorki
Udorka Valley - Chocolate flint mine. -
Perspektywiczna Cave
Małopolska/ Archaeologists explore a cave inhabited for thousands of years -
Biśnik Cave
Middle Stone Age cave - settlement. -
Birów
Neolithic settlement.