The first settlements on open space, were confirmed already in the Neolithic, by numerous findings of polished stone tools and handmade ceramics of the Sopot and Starčevačka culture (5500 – 3500 b. Ch.). On the foots of the Papuk hills, several settlements were built in the Copper Age (Eneolithic), from 3500 – 2200 b. Ch., that fortify and move to the peaks and higher slopes in the Bronze Age, offering protection and control of the natural roads, which went along the river valleys from the beginning of time. The possibility of visual communication between the prehistoric settlements on higher altitudes, the so called forts, is confirmed.
During the Early Iron Age (750-300 b. Ch.) there existed many settlements in the valley of Požega and the surrounding hills, connected with Kaptol as the center. This worldwide known site of the Halstatt culture is an extraordinary finding of rich ducal graves. The deceased were burned and the ashes in urns were buried under burial mounds. Ceramic black painted pots were often coated with a fine layer of graphite and decorated with animal horns. They witness of wealth and power of the dukes of Kaptol. Parts of warrior equipments indicate a connection with the Greeks, and a high cultural level and economical development of this area.
From the peripheral area of the Park, the settlement Velika, originates a valuable finding of Celtic jewelry, found in a female grave from the late Iron Age (4th century b. Ch.).