In between the towns of Castellane (map) and Moustiers-Sainte-Marie (map), the river has cut a ravine to a depth of 700 meters through the limestone mass. At the end of the canyon, the Verdon flows into the artificial Lake of Sainte-Croix (map).
For some distance the Verdon Gorge forms the border between the départements of Var to the south and Alpes-de-Haute-Provence to the north in the Provence-Alpes-Côte d’Azur région.
This region between Castellane and the Lac de Sainte-Croix is called the Gorges du Verdon, or Verdon Gorge. It is split into three distinct parts:
- “Prégorges” (‘pre-gorge’), from Castellane to Pont de Soleils,
- the deepest part of the Gorge, from Pont de Soleils to l’Imbut, and
- the Canyon from l’Imbut to the Pont de Galetas.
It is easily accessible on its right bank from the north (via route D952 from Castellane to Moustiers-Sainte-Marie), and on its left bank from the south (via routes D71, D90 and D955 from Aiguines to Castellane).