Okayama
is the capital city of Okayama Prefecture in the Chūgoku region of Japan. The Okayama metropolitan area, centered around the city, has the largest urban employment zone in the Chugoku region of western Japan. The city was founded on June 1, 1889. , the city has an estimated population of 700,940 and a population density of 890 persons per km2. The total area is . The city is the site of Kōraku-en, known as one of the top three traditional gardens in Japan, and Okayama Castle, which is ranked among the best 100 Japanese castles. The city is famous as the setting of the Japanese fable Momotarō. Okayama joined the UNESCO Global Network of Learning Cities in 2016. Geography The city of Okayama is located in the southern part of Okayama Prefecture, which is located in western part of the island of Honshū. The northern part of the city forms a corner of Kibi Plateau, which is a series of gentle hills, and includes the Asahikawa Dam, Okayama Airport, and a suburban residential area. The central urban area is located on the Okayama Plain in the south, which was formed by the transportation and sedimentation of two first-class rivers, the