This paper summarizes the results of archaeological work carried out d
uring the past eight years on the Passes/Santa Comba Mountain in north
ern Portugal. The more important sites there are thirteen painted rock
shelters. One of them, Buraco da Pala, was occupied for three millenn
ia, making it reasonable to assume that it played a part in different
social, economic and symbolic systems. It was used for settlement purp
oses between the late sixth/early fifth millennium sc and the beginnin
g of the third. A high number of burnt cereal grains shows the introdu
ction of farming in the interior of northern Portugal. Buraco da Pala
was used as a granary and storage was carried out in large pottery ves
sels that occupied most of the usable space in the shelter. These leve
ls provide evidence both for the intensification of agricultural produ
ction in this area during the Chalcolithic period and for different wa
ys of symbolically appropriating the surrounding territory.