Kanegawa-no-Mori is a public park built along Kanegawa river goes through the East side of Kofu Basin, Yamanashi prefecture. The park is called “Mori (forest)”, which is originally preserved woods designated in conservation laws as the disaster measures of river flood. These woods are semi-natural environments managed by local people as coppices for over a hundred years. The woods consisted of several oaks, hornbeams and pine trees, which were used to be cut down every 20-30 years as fuels until gas supply began in Japan after the World War II. When the large improvement works of the river was executed, the woods lost their major system functions and were abandoned for a while. But in 1970’s, the increasing demand for holiday resorts saved 36ha of woods from development and they were revived as a park consisting of 6 woods in 1996.