10 Facts About Garonne

Garonne is a river of southwest France and northern Spain.

Ratera-Saboredo cirque is the "most distant point in the drainage basin from which water runs", and the source of the Garonne, according to the United States Geological Survey, the National Geographic Society, and the Smithsonian Institution convention upon determining a stream's source.

Garonne follows the Aran Valley northwards into France, flowing via Toulouse and Agen towards Bordeaux, where it meets the Gironde estuary.

Along its course, the Garonne is joined by three other major rivers: the Ariege, the Tarn, and the Lot.

Just after Bordeaux, the Garonne meets the Dordogne at the Bec d'Ambes, forming the Gironde estuary, which after approximately 100 kilometres empties into the Atlantic Ocean.

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Garonne is one of the few rivers in the world that exhibit a tidal bore.

In Toulouse, the Garonne has been the cause of many floods, especially since its left bank is inhabited.

In Toulouse, in 1827, the water level of the Garonne rose four meters above the ordinary level and filled the arches of the Pont de Pierre and Pont Neuf.

In 1835, the Garonne rose to five meters above normal and 35 meters above the low water level and flowed through the four arcs of the Pont de Pierre.

In 1777, the Garonne suffered an extraordinary flood to the point that the priest of Bourdelles took the trouble to retranscribe the event, at the end of the acts of the year, in the parish register of baptisms, marriages and deaths.