Ebro Hydrographic Confederation

The Ebro Hydrographic Confederation (in Spanish: Confederación Hidrográfica del Ebro, CHE) is the organization that manages, regulates and maintains the water and irrigation of the Ebro hydrographic basin (northeastern Spain). The organization's headquarters are in Zaragoza and it was the first institution created in the world with the objective of managing an entire river basin in a unitary manner.

Source: Wikipedia — Ebro Hydrographic Confederation (CC BY-SA 4.0)