The settlement on Monte Castellazzo, at 614 meters above sea level, was discovered around the 1950s; it was the seat in the archaic age of one of the most important indigenous settlements of the Belicine area together with Monte Maranfusa, Entella, Segesta, from which it is a few kilometers away as the air line.
On the southern side of the mountain were found the remains, still visible, of a stretch of fortification wall made of large limestone blocks with a monumental gateway to the town where, under the archaic indigenous houses, emerged the remains of huts of the Middle Bronze Age (1.400-1.300 BC) and a rectangular building dating back to the Arab-Norman period. On the acropolis, a stretch of walls was enclosed which enclosed the top of the mountain to which various rooms of houses were placed.
This important indigenous settlement of the Iron Age, which on a historical-cultural level was generally attributed to the Elymian civilization of western Sicily, was the subject of a new cycle of archaeological investigations.
The 2008-09 campaign involved two new sectors, ctod ‘Campo IV’ and ‘Campo V’.
In Camp IV, located in the 'lower city' along the south-south east boundary of the mountain, the remains of a late-archaic building, containing interesting artifacts of local production and importation that attest to close contacts between the world, have been brought to light indigenous and colonial world.
In Campo V, located in the 'upper town' near the summit, a powerful rectangular-shaped building was brought to light, characterized by some frame walls, dating back to the VI-V century B.C. In both yards, smtor and more ancient contexts have also emerged, which in any case throw new light on the material culture of the indigenous settlement of Monte Castellazzo in the Iron Age, in a period prior to contact with the Greek colonial world.