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Chubu-Sangaku NP, Nagano / Gifu
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Nishihotakadake’s saw-toothed ridge is part of the ancient Yari–Hotaka caldera, formed about 1.76 million years ago. Hot ash from the eruption fused into hard rock that helps build the mountain spine today.
Nishihō Sansō’s signature ramen brings a taste of nearby Takayama to the high ridge. Its extra-thin, curly noodles cook through even in the hut’s high-altitude kitchen, where water boils at a lower temperature.
The rugged ridge between Nishihotakadake and Okuhotakadake was first traversed in 1912 by Masao Udono, a pioneer of Japanese mountaineering—long before this demanding route became famous among climbers.
On August 1, 1967, lightning struck a 46-person Matsumoto Fukashi High School party near Nishiho Dokusho, a ridge point on the way to the summit. Eleven students died and 13 people were injured.
Since 2010, numbered labels have identified the peaks along the ridge; Nishiho Dokusho is No. 11. The numbers were added in part to help rescuers pinpoint where someone needs help.
Writer Sumie Tanaka paired Nishihotakadake with the alpine flower senju-ganpi in her “Flower 100 Famous Mountains.” Botanist Tomitaro Makino traced “Senju” in its name to Senju-ga-hama, beside Lake Chuzenji.
Local guide Mamoru Murakami founded Nishihō Sansō in 1941, captivated by the rugged ridge he saw from Okuhotakadake. He kept working at the hut into his 80s, staying there until he was 86.
A 1990 fire, apparently started when firewood was stored too close to a stove, destroyed Nishihō Sansō’s main sleeping building. The hut reopened in a new annex in 1991, and its rebuilt main building followed in 1992.
At 2,367 meters, Nishihō Sansō is the only year-round mountain hut in the southern Northern Alps. Its four-season role began before the Shin-Hotaka Ropeway opened in 1970.
The 1967 accident is remembered each August 1 at Matsumoto Fukashi High School’s memorial. The school’s 2026 report also records a service at Nishiho Dokusho, attended by alumni, mountain-club students and staff.
