The Ebro River is the longest river in Spain, flowing approximately 910 kilometers from its source in the Cantabrian Mountains to the Mediterranean Sea. Its hydrology is characterized by a mix of snowmelt and rainfall, with peak flows typically occurring in spring and early summer. The river's basin covers about 85,000 square kilometers, supporting diverse ecosystems and agricultural activities. The river's flow is influenced by various tributaries, including the Segre, Gállego, and Jalón rivers. Seasonal variations in precipitation and temperature affect water levels, leading to fluctuations in discharge. The Ebro Delta is a significant area where the river meets the sea, providing vital habitats for wildlife and important resources for local communities.