Castellet-en-Luberon

Castellet-en-Luberon (lit. "Castellet-in-Luberon; Occitan: Lo Castelet), known simply as Castellet until 2018, is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in Southeastern France. In 2021, it had a population of 113.

Geography
The river Calavon forms all of the commune's northern border.