This mountain belongs to the Old Massif of Entre Douro e Tejo and its highest point is at 1227 meters. It also has a dense afforestation due to the extensive planting work, namely chestnut trees, carried out at the end of the 13th century, during the reign of Dom Dinis. It presents a great diversity of flowers, having some unique species in Portugal. A popular pilgrimage is held annually at the top of the mountain in the chapel of São Macário.

A dam with a capacity of 90 thousand cubic metres.

A dam located at the Poldras Brook, a tributary of the right bank of the Meimôa Brook. The reservoir belongs to the Tagus river basin, surrounded by the lovely sceneries of the Cova da Beira. Recreational activities are permitted, albeit with some restrictions.