Reservoir of Guajaraz Nature · Argés, Montes de Toledo, Toledo A reservoir built between 1970 and 1971 on the Guajaraz stream, a tributary of the Tajo, between the municipal areas of Argés, Layos and Casasbuenas, on the foothills of the Montes de Toledo. It was built to replace the old Roman infrastructure that supplied Toledo, such as the presa de la Alcantarilla, of which only remains survive today, and it supplies drinking water to the city and nearby municipalities as well as regulating the flow of the Tajo. With a dam 46 metres high and 332 metres along its crest, it stores 18 cubic hectometres of water over a surface of 160 hectares. Its surroundings of holm oak woods and Mediterranean scrub, with riverbanks of willows and poplars, are a site of interest for birdwatching, with species such as herons, cormorants and grebes, and it also attracts hikers and anglers. Photo: Rodelar (CC BY-SA 4.0) What to see and do in Argés