Castelo do Portelo/ Coto de Sendim

The castle of Portelo\/frontier lift was implemented in a dividing line of country, being most of the lot belonging to Portugal.
On the West side are well visible remains of walls, with about 1 meter in height and 0.70 meters wide average; If the defense was natural. The castle was built on rocky hills from the top, where they observe nesting tears the lines of Defense. This castle, such as the Piconha, the de Montalegre, Monforte de Rio Frio and Keys was intended to defend the valleys of the Tâmega and Cávado therefore places open dry streak and difficult frontier defense in Medieval times. The castle of Portelo\/stated in the "book of Fortresses" by Duarte d'armas (1509), where it turns out that the fortress consisted of a central tower, based on natural rock and surrounded by walls, although in the description that it makes of the fortress, it was already in ruins "the ruins of the fortress of Portelo\/..." Also highlights this site a find of Roman coins. "... archaeological finds, coins and pieces of construction ceramics, the Romans would have won ..."