The Towada-Hachimantai National Park is situated in the Tohuku region, shared by Aomori, Akita and Iwate Prefectures.
The park is divided in two areas:
The Towada Caldera with the Hakkoda-san.
The Hachimantai Plateau with the volcanoes Iwate, Akita Komagatake and Hachimantei.
Japan 1951, "Towada-Hachimantai National Park".
The four stamps of the miniaturesheet are showing:
Oirase-River / Towada Caldera lake
Towada Caldera Lake / Hakkoda-san
The stamps were issued in sheets of 20 stamps as well.
Japan 2015, Towada Hachimantai National Park.
The stamp was issued in the series "Definitives".