In the area of Gornji Radišići (hamlet Marići) near Ljubuški, there is the locality Mrljanovac, where the remains of graves from the developed Iron and Hellenistic periods (5th- 1st century BC) were discovered.
Through the Mrljanovac gorge, the fortifications of Sitomir (394 m above sea level) and Obala (369 m above sea level) were approached, which are located in prominent positions of the Butorovica mountain massif. Remains of a necropolis from the late Hellenistic period were discovered in the southern part of the Mrljanovac gorge, in the micro-locality of Grebina. In the Herzegovinian area we have very scarce data on necropolises and burial units from 3-1. century BC Cr.