The hillfort at Wicin was built by the people of the Lusatian culture in the early Iron Age, in the so-called Hallstatt period C-D.
See:
- Michał Bugaj: Non-destructive survey on fortified settlement in Wicina, Jasien commune, lubuskie voivodeship, Poland, in: A Sense of the Past Studies in current archaeological applications of remote sensing..., BAR International Series 2588, 2014, pp. 47-57
- https://zabytek.pl/pl/obiekty/wicina-osada-obronna