Mount Nikkō-Shirane (日光白根山, Nikkō-Shirane-san) is a stratovolcano in the Nikkō National Park in central Honshū, the main island of Japan.

Its peak is the highest point in both Tochigi and Gunma Prefectures[3] The area around Shirane Volcano is designated as Nikko National Park in which there are various natural features such as Goshiki pond, Yuno lake, Yu falls, Senjo moor, and Odashiro moor.

"Shirane" means a white mountain covered with snow, hence such name can be found in many places in Japan.

This is a newly formed lava dome where there are mountains of the Shirane volcano group such as Maeshirane, Goshikiyama, Sotoyama, and Shiranekakuzan, which are stratovolcanoes.

The main trails to the summit are from Nikko Yumoto Onsen via Sotoyama Ridge, Tengudaira, Mae Shirane, Suganuma via Midagaga Pond, and Kinsei Pass from Goshikiyama / Midagaike.

Whilst less common and discouraged there are a number of options to hike and climb in the winter season.

The most popular routes in winter are from the ski field in Yumoto via the chair lift and Mae-Shiranesan to and from the Gunma side via the Marunuma ropeway.

Both are long hikes in deep snow and it is recommended to stay overnight at the emergency shelter near Goshiki-numa, about 100 metres below the summit.

[8] Most areas and routes are avalanche free except for the steep gullies between the main ridges, namely on the eastern side.

[11] Also possible is to ski down one of the gullies on either the side on the east or south-east ridges close to the variation climbing route.