Zêzere

Zêzere is a river in Portugal. It is the third longest river in mainland Portugal, with a length of 242 kilometers. The Zêzere originates in the Serra da Estrela, the highest mountain range in continental Portugal, and flows in a generally south-westerly direction before emptying into the Tagus River near Constância. The river's course is marked by a series of dams, most notably the Castelo de Bode Dam, which forms a large reservoir and is a significant source of hydroelectric power and water for irrigation and consumption.

The Zêzere basin covers an area of approximately 5,000 square kilometers and is characterized by a Mediterranean climate. The landscape along the river varies from the mountainous terrain of its source to more undulating plains as it approaches its confluence with the Tagus. The river has played an important role in the region's history and economy, supporting agriculture, industry, and tourism. The construction of dams has altered its natural flow but has also provided benefits in terms of water management and energy production. The Zêzere is also known for its natural beauty, with several scenic spots attracting visitors.