Alduero is a river located in the region of Castile and León in Spain. It flows through the provinces of Salamanca and Zamora, eventually joining the Duero River. The river is known for its scenic landscapes and is an important water source for the surrounding areas. The Alduero is approximately 100 kilometers long and supports various ecosystems along its banks. It is also a popular spot for recreational activities such as fishing and hiking. The river plays a role in local agriculture, providing irrigation for nearby farms and contributing to the region's economy.