Torres derrocades en la frontera del Montsec

San Miguel of the Valley (Gavet de la Conca, Pallars Jussà), archaeological medieval deposit studied by M.Riu Riu from 1978, is a reinforced habitat elevated in a buttress of the saw of the Monsec, which consists of a castle with pit, wall and towers. The present study tries to contribute new historical by-lines on this settlement of border, one of the most evolved and best preserved examples that we have in Catalonia, and then to demonstrate the importance that had in the year 1000. The origin of the Castellons del Pallars is in the conquest of the zone for the counts of Barcelona, and in presence of the so called Sal.la de Conflent, I throw(add) that allows to overcome the vision of compartments reservoirs that have wanted to be given to the epoch and to establish relations along the whole border of the Catalan counties, from the Conca de Barberà up to the Ribagorça.