The Gállego River is a significant waterway located in the northeastern part of Spain, primarily flowing through the region of Aragón. It is a tributary of the Ebro River, which is one of the longest rivers in Spain. The Gállego River originates in the Pyrenees Mountains and travels approximately 100 kilometers before joining the Ebro near the town of Zaragoza. The river is known for its stunning natural scenery, including deep gorges and lush valleys. It also supports various recreational activities such as fishing, kayaking, and hiking along its banks. The Gállego River plays an essential role in the local ecosystem and contributes to the agricultural irrigation in the surrounding areas.