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Chubu-Sangaku NP, Gifu
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At 2,702 m, water boils at about 91°C, so even cooking rice is tricky. Yet Tatamidaira’s kitchens serve Hida beef and hoba-miso: beef and vegetables grilled on a fragrant magnolia leaf.
Tatamidaira’s road began as a military project: the Japanese Army built it to reach an aircraft-engine high-altitude test station. It opened in 1942, but the war ended before the facility saw military use.
A 1955 visitor recalled a woman conductor guiding buses around Tatamidaira’s cliff-edge bends by calling “all right” from the roadside. On the rough early road, passengers sometimes had to get out and push uphill.
Residents of Sawakami once climbed Norikura together every August 8 and performed shishimai, a lion dance, at the summit. Today, the local Norikura Festival is held at Tatamidaira’s Nakano shrine.
In 1949, Osaka City University researchers began cosmic-ray experiments at Tatamidaira, using a former Army building. Those early high-altitude studies helped set the stage for Japan’s national shared cosmic-ray observatory.
At Tatamidaira, the small Nakano shrine lets visitors worship the main Norikura Shrine on 3,026 m Mount Kengamine without climbing to the top. It was built in 1953 to pray for the safety of mountain travelers.
On nearby Marishitendake, a solar observatory opened in 1949 at 2,876 m. Its coronagraph blocked the Sun’s disk—creating an artificial eclipse—to reveal the corona, which is only about one-millionth as bright.
Young ptarmigan chicks on Norikura have been observed eating their mother’s special cecal droppings. Studies suggest this helps them acquire gut bacteria that aid digestion of their plant-rich alpine diet.
Japan’s rock ptarmigans live in isolated high-mountain ranges at the southern edge of the species’ distribution, and Norikura is one of their breeding mountains. Their mottled summer feathers turn almost entirely white in winter.
Beside Tatamidaira, Tsurugaike’s shoreline bends into an S like a crane’s body. The shape formed as sediment washed down from Mount Daikokudake and reshaped the pond.
Nearby Kiezugaike—不消ヶ池, or “Never-Disappearing Pond”—gets snow blown into its crater hollow by north winds. The snow can last year-round, and the pond is protected as a water source for summer mountain facilities.
Some high-alpine plants can take 5–20 years from seed to first flower. Around Tatamidaira, a brief summer display is the visible end of a remarkably slow life in snow, wind and poor soil.
Trampling and runoff once left bare patches around Tatamidaira and Tsurugaike; Gifu surveys later recorded vegetation recovery. Volunteers also remove alien weeds such as western dandelion to protect the fragile alpine flora.
After a 2009 bear attack at Tatamidaira, investigators found the adult male had been eating natural foods, not garbage. Repeated encounters with people, vehicles and fences were thought to have triggered defensive panic.
