Simplify the following text for a Grade 6 native English-speaking person.
Original: Boulbon is a commune in the Bouches-du-Rh Ã ne department in southern France .
Simplified: Boulbon is a commune of 1,510 people ( 1999 ) . It is found in the Provence-Alpes-C Ã te d'Azur region in the Bouches-du-Rh Ã ne department in the south of France .