The second fortification part is roughly 5 km (3.1 mi) long system of ramparts forming an outer ring.

The main fortification has a secondary rampart within it that divided it into two sections, lower part of the 400 x 250-meter contained some sort of "acropolis".

[3] In front of the castle, at the site of a former Bronze Age settlement, the graveyard of the Iron Age settlement was discovered, which is still recognizable under the trees of the forest with its stone-laid tombs and the cremation rituals with stone circles surrounding them.

[4] Its inhabitants were the people of the Early Iron Hallstatt culture, and they built the Earth's fortress around 750 BC.

The Romans might have forced the inhabitants of the city to leave their town because of their magnitude and good defences, and instead founded the nearby Sopianae, the predecessor of today's Pécs.