Mount Hiuchigatake, Stratovolcano in Oze National Park, Fukushima Prefecture, Japan

Mount Hiuchigatake is a stratovolcano in Oze National Park, Fukushima Prefecture, Japan, reaching an elevation of 2,356 meters (7,730 feet) and built from andesite rock. Two lava dome formations called Akanagure and Mi-ike shape the summit zone and define the appearance of the peak.

Hiuchi began erupting around 160,000 years ago, producing the Mokake pyroclastic flow and Shichiiri pumice. About 8,000 years ago a landslide on the mountain created Lake Ozenuma. The only recorded activity was a phreatic eruption at the Mi-ike lava dome on July 28, 1544, which generated lahars and a tephra layer; a white-clay flood called "Shirohike water" was recorded at Hinoemata that day.

The mountain's name comes from the residual snow seen from its foot, which resembles a fire-striker (hiuchi-basami). In 1889 Chozo Hirano climbed to the summit and built a small stone shrine there; the following year he opened a mountain hut at Numajiri-Ondashizawa, and that year is popularly regarded as the year Oze was opened to climbers.

The hiking trail from Numayama-toge measures 13.4 kilometers and takes around six hours for the round trip to the summit and back. Hikers should start early and watch the weather, as conditions can shift quickly on a volcano peak.

The summit holds five peaks; the highest, Shibayasu-gura at 2,356 m, carries no triangulation point, while the slightly lower Manaita-gura (2,346 m) bears the second-class triangulation point "Hiuchidake". From Ozenuma the two stand out side by side, and only Shibayasu-gura, Manaita-gura and Minobuchi-dake have trails.