This is an indescribably beautiful area distinguished by the waters of the important River Tagus that marks its banks in geomorphological and historical terms like nowhere else. The imposing quartz crest of Portas de Ródão, carved out by the force of the waters, is a favourite setting for film-shooting. The landscape is marked by thousands of years of human occupation and cone-shaped piles of boulders along the banks bear witness to the gold panning that took place in the river.