Châtillon is a commune located in the Ain department in the Auvergne-Rhône-Alpes region of France. It is situated near the Saône River and is known for its picturesque landscapes and historical architecture. The area features a mix of modern amenities and traditional charm, making it an attractive place for both residents and visitors. The town has a rich history, with roots dating back to the Roman era. Châtillon is also recognized for its local culture, including various festivals and events that celebrate its heritage. The surrounding countryside offers opportunities for outdoor activities, such as hiking and cycling, appealing to nature enthusiasts.