Which city in southeast France lies at the confluence of the Rhone and Durance rivers?
Durance with the Rhône south of Avignon. Its direction changes from southerly to westerly then northwesterly, aligning with the small Provençal mountain ranges between which it flows (Alpilles and Luberon). The Durance receives only one significant tributary on this last part of its course: the Calavon, which flows around the Lubéron range to the north. This is a list of rivers longer than that flow into the Durance. They are listed in order of the confluence, starting upstream. A river is known as "capricious", alternating between its feared flash floods (it was called the "third plague" of Provence) and its low
Durance each merge. The Durance is better known than the other two rivers because the Durance valley is an old and important trade route, whereas the valleys of the Clarée and Guisane are effectively dead ends. The Durance is long from its source at the foot of Sommet des Anges, at high, above Montgenèvre, to its confluence with the Rhône. However, a longer route is traced by the Clarée-Durance system with a length of . Its descent is unusually rapid at 81 m/km (165 ft/mi) in its first , then 15 m/km (30 ft/mi) to its confluence with the Gyronde, and