Hachikokuyama (八国山緑地, Hachikokuyama Ryōkuchi) is a ridge and park in Higashimurayama, Tokyo along its border with Tokorozawa, Saitama. Its name translates literally into English as "Eight Country Mountain" since, in the past, one could view the eight surrounding provinces surrounding Musashi Province from its top. The park was opened in 1990.[1] In Japanese it is designated as a ryokuchi (緑地, green zone) instead of a park.
The park lies upon a low rising ridge rising about 15 to 20 meters above the surrounding plain. The highest elevation is about 100 meters above sea level. Measured from north to south, the park is from 100 to 300 meters, the park having an uneven size. From east to west the park is about 1.5 kilometers. The trail that runs the length of the ridge top is about 2.0 kilometers and branches into many secondary trails. The total size of the park of is about 39 hectares or about 96 acres.