The Tejo River, also known as the Tagus, is the longest river in the Iberian Peninsula, flowing approximately 1,007 kilometers. It originates in the Sierra de Albarracín mountains in Spain and travels through Portugal before emptying into the Atlantic Ocean near Lisbon. The river plays a crucial role in the region's ecology and economy. The Tejo River is significant for its historical importance, having served as a vital waterway for trade and transportation for centuries. It is also known for its scenic beauty, with picturesque landscapes along its banks, including parks and recreational areas that attract both locals and tourists.