A network of rivers

Over 50,000 hectares of mountainside with countless little streams issuing from the tiniest springs drain into the Tarn and its tributaries downstream of Florac. These rivers all belong to the Atlantic side of the watershed: their water flows into the Atlantic. Their rate of flow is more even than that of the Cévenol rivers belonging to the Mediterranean basin. On the Atlantic side, the average slope is moderate and the climate fairly regular, whereas the Mediterranean side has more abrupt gradients and storms with heavy rainfall in autumn and spring. Between them lies an intermediate zone which blends both characteristics, as it does here.