The site Silne Błota (Strong Mud) have beem used as a temporary hunting camps occupied by wandering reindeer hunters (9-8 thousand BC) and then by hunters and fishermen (7.5 and 5 thousand BC). Excavations yielded traces of huts and numerous cultural layers, in which many flint, stone, horn, bone and wooden objects have been found.
Sources:
- Lubomira Tyszler, Anna Nierychlewska., Rescue excavations on site 14–15 in Witów, district of Łęczyca, Łódź province(The Line of Freeway A-1, Muzeum Archeologiczne i Etnograficzne, Łódź 2018