Where the River Flows

This Spanish map provides information on peak flood flows for all major Spanish rivers. Mapa De Caudales Maximos (Maximum Flow Map) colors Spanish rivers by the magnitude of peak flood flow frequency.

The map is designed to provide an estimation of flood flows for general infrastructure work, where a high precision in the estimation of the flow is unnecessary. If you click on a section of a river on the map you can view an interpolation of river flow data for periods of 2, 5, 10, 25, 100 and 500 years. This data is also presented in the map sidebar as a bar chart.