大沼国定公園 北海道 Onuma Quasi-National Park, Hokkaido JAPAN

Ōnuma Quasi-National Park 大沼国定公園 is a 90.83 km2 quasi-national park on the Oshima Peninsula in southwest Hokkaidō, Japan. The park encompasses the volcanic Hokkaidō Komagatake 北海道駒ケ岳 as well as the Ōnuma 大沼 and Konuma 小沼 ponds, which abut against the west slope of the mountain. The park, which was designated as quasi-national in 1958, is the smallest major park in Hokkaidō.