The Joshin'etsukogen National Park covers an area of 1890,62 square kilometres within the Gunma, Nagano and Niigata Prefectures. It was established on September 7, 1949.
The park is divided into three areas:
The two stamps were issued perforated in sheets of 20 stamps as well.
Japan 1999, snow monkeys of Jigokudani Yaen-koen.
Jigokudani Yaen-koen is located (36°43'58.17"N 138°27'46.27"E) in Yamanouchi-machi Shimotakai-gun. Jigokudani Yaen-koen is part of the Joshin'etsukogen National Park. It is famous for its large population of wild Japanese macaques enjoying bathe in the hot springs.
Japan 1981, "Power Plant in the Snow", 1956.
Artwork by Shikanosuke Oka (1898–1978)
Oil on canvas 72.8 x 90.9 cm
Bridgestone Museum of Art (Tokyo)
The artwork shows the powerplant "Hirao Daiichi" in Yamanouchi-machi Shimotakai-gun. The japanese word "Daiichi" means "first" or "foremost". The location of Hirao I (originally built by Nagano Electric Light in 1926) is approximately 1 kilometres in the south of the Jigokudani Yaen-koen onsen, where the famous snow monkeys can be found. (geocode of the power plant: 36°43'22.38"N 138°27'26.63"E).
The still existing building of Hirao I looks identic with the artist's artwork, which however due to the view in google earth and google street view applies less to the imposing background of the painting.