The Verdon Gorge (in French: Gorges du Verdon or Grand canyon du Verdon), in south-eastern France (Alpes-de-Haute-Provence), is a river canyon that is often considered to be one of Europe's most beautiful. It is about 25 kilometers long and up to 700 meters deep. It was formed by the Verdon River, which is named for its startling turquoise-green colour, one of the location's distinguishing characteristics. The most impressive part lies between the towns of Castellane and Moustiers-Sainte-Marie, where the river has cut a ravine to a depth of 700 meters through the limestone mass. At the end of the canyon, the Verdon River flows into the artificial lake of Sainte-Croix-du-Verdon.