Located on the Guadiana River, this dam performs the function of counter embalming the Alqueva Dam.

Small water course, which crosses the lands of Marmelar and flows into the waters of the Guadiana.

The Mendro Hill separates the Baixo Alentejo region from the Alto Alentejo and is located in the limits of the districts of Évora and Beja, between Vidigueira and Portel, and belongs to the Old Massif to the south of the Tagus river. Its hillsides are tree covered and one may view, from the Mendro hill, on the foothills, a lovely panorama to the south, from Vidigueira, Beja, harvest lands and olive trees.