Apt is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in southeastern France.
It lies on the left bank of the Calavon, 41 miles east of Avignon. It is the principal town of the Luberon mountains.
The town is known for defining the Aptian age of the Early Cretaceous.
Wikipedia https://en.wikipedia.org/wiki/Apt,_Vaucluse
Coordinates 43°52'32.857" N 5°23'49.433" E
