This mountain range is located between the Açor and Sicó mountains, southwest of Coimbra, on the border with the district of Leiria. It measures 30 kilometers long and 30 kilometers wide, reaching its highest point of about 1,000 meters at Alto do Trevim. It is a mountain range deeply furrowed by a branching network of valleys and steep slopes on its northwestern edge. It boasts a rich fauna and flora, boasting a wide variety of botanicals, and even some watercourses, the famous Lousã river pool. Along the mountain range, trails lead us to villages frozen in time, populated by schist …

A dam located on the Arouca river, near the Lousã hill, on the Mondego river basin.