Location Honshū, Japan Area 275.7 km² | Governing body Kanagawa Prefecture Established March 25, 1965 | |
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Oyama national park
Tanzawa-Ōyama Quasi-National Park (丹沢大山国定公園, Tanzawa-Ōyama Kokutei Kōen) is a quasi-national park in the Kantō region of Honshū in Japan. It is rated a protected landscape (category V) according to the IUCN. The park includes the Tanzawa Mountains, Miyagase Dam and its surrounding forests, Hayato Great Falls and the religious sites of Mount Ōyama in the mountains of western Kanagawa Prefecture.
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In May 1960, a 38,762 hectare area of western Kanagawa Prefecture in the Tanzawa Mountains was designated for protection as the Tanzawa-Ōyama Prefectural Natural Park. The central portion of this area was further designated a quasi-national park on March 25, 1965.
Like all Quasi-National Parks in Japan, the park is managed by the local prefectural governments.
The park spans the borders of the municipalities of Atsugi, Hadano, Isehara, Kiyokawa, Matsuda, Sagamihara, and Yamakita.