The document discusses the town of Aso in Kumamoto prefecture, Japan. It has a population of 29,636 people and is known for Mt. Aso, a famous volcanic mountain that has large, beautiful parks. One park mentioned is Kusasenri, a very beautiful area with horses, cows, and horse riding. Shirakawa is noted as the source of a river and is a popular place for people to visit and take water from.