Trentino- South Tirol territory has been almost fully covered by the ice until about 12.000 years ago. Traces of human presence from Middle Paleolithic were found only within mountain places of the middle southern sector of Alps chain. The most the ice melted the more grew people density.
By Neolithic the settlements of farmers-collectors can be pointed-out mostly onto the valley floor as well as on hilly areas. The most amazing finding is the Similaun man, a natural human mummy from about 3.500 years ago.
Trentino-Alto Adige Bronze Age is defined by some stilt-houses settlements on shores of Ledro and Fiavè lakes. In the Iron Age were built many villages on middle mountain zones. Romans came on I Century AD and stayed until barbaric invasions started.