The results are presented of the existing archaeological investigations at the protohistorichillfort of Sveta Trojica (Holy Trinity), not far from Starigrad, and in its wider zone that also includes a Byzantine castrum. Although the results of sounding investigations and surveying, anda set of finds point to a long continuity of inhabitation, only further investigation will tell us more about the characteristics of the hillfort type settlement and the existence of a presumed necropolis plus the significance and role of the Byzantine castrum at the foot of the hillfort. Also highlighted is a section about the presentation and communication of the local heritage with an integral approach,initiated by the Archaeological Museum in Zagreb, with the achieved and planned effects. Laser recording from the air and the making of a digital model of the karst relief is recognised as an adequate method for future investigations, with an interdisciplinary potential.