A few but outstanding findings on St. Stefano hill testify that this is probably one of the oldest and the most interesting site in Valcamonica and in the Alps.
It consists of traces of a hut and a sort of lithic altar dating to (13th  millennium B.C.)
Thanks to this structure we can state the presence of the earliest human seasonal settlements within the territory in the Upper Paleolithic, probably a ritual place or part of a ritual when the first hunters began to go up the valley itself to hunt as the last glaciers retreated towards the north.
In the same place several chronological phases have been identified between the Upper Paleolithic and the Lower Mesolithic (until VI millennium B.C.) which show the presence of seasonal communities when the valley was covered by vegetation and populated by fauna.
Hundreds of remains testify the presence of habitual human settlements in the rocky area of St.Stefano and that's why it is considered a highly significant site.
In the same place we can find stratifications of remains, some interesting Neolithic traces of the first pastoral-farming communities and of the Bronze and Iron Ages (II – I millennium B.C.)
In addition there are traces of a 'domus' of the Roman times and medieval findings.
Most of them were found in the area of St. Stefano and inside St.Stefano church.
Among the prehistoric remains there are: fragments of pottery and bronze (fibulas, needles), pieces of  a necklace, jewels made of bone and finely carved, engravings, findings of burial places and rocks which testify defensive structures.
Only part of it has been brought to light, but the prehistoric site might have been very large.
Moreover this area which seems a place of meeting and exchanges in the valley, might have had an important social role. In fact in the same area we find the remains of a Roman temple and other interesting traces of the Roman times.
We can imagine that the Romans found a prestigious and well fortified village located in an excellent position.
It might have been an important centre and transit road in the area.