Towada-Hachimantai National Park is a national park comprising two separate areas of Aomori, Iwate, and Akita Prefectures, Japan. The Towada-Hakkōda area encompasses Lake Towada, Mount Hakkōda, and most of the Oirase River valley. The Hachimantai area includes Mount Hachimantai, Mount Iwate, Tamagawa Onsen, and Akita Komagatake. The two areas are 50 kilometres apart, and cover 854 square kilometres.