In the early 1990s, under the supervision of the Conservation Department of the State Institution for the Protection of Memorial Heritage, under the expert guidance of archaeologists, and at the initiative of the Historical Society of Klana, systematic archaeological conservation work began at Gradina Castle.
In the early 1990s, systematic archaeological conservation work began at Gradina Castle, guided by experts in archaeology and supported by the Conservation Department of the State Institution for the Protection of Memorial Heritage, and initiated by the Historical Society of Klana.