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Jigokudani Monkey Park (地獄谷野猿公苑 ''Jigokudani Yaen Kōen'') is in Yamanouchi, Shimotakai District, Nagano Prefecture, Japan at . It is part of the Joshinetsu Kogen National Park (locally known as Shigakogen), and is located in the valley of the Yokoyu-River, in the northern part of the prefecture. The name Jigokudani, meaning "Hell's Valley", is due to the steam and boiling water that bubbles out of small crevices in the frozen ground, surrounded by steep cliffs and formidably cold and hostile forests. The heavy snowfalls (snow covers the ground for 4 months a year), an elevation of 850 metres, and being only accessible via a narrow two kilometre footpath through the forest, keep it uncrowded despite being relatively well-known. It is famous for its large population of wild Japanese macaques (''Macaca fuscata''), more commonly referred to as Snow Monkeys, that go to the valley during the winter, foraging elsewhere in the national park during the warmer months. The monkeys descend from the steep cliffs and forest to sit in the warm waters of the onsen (hotsprings), and return to the security of the forests in the evenings. However, since the monkeys are fed by park attendants, they are in the area of the hot springs all the year round, and a visit at any season will enable the visitor to observe hundreds of the macaques.〔(Jigokudani Monkey Park (Yaen-Koen) Official Site |title= Jigokudani Yaen-Koen Official Page )〕 Jigokudani is not the farthest north that monkeys live. The Shimokita Peninsula is at the northern part of the Honshū island and the northwest area of this peninsula, latitude +41°31' longitude +140°56', approximately 500 km or 310 miles north from Jigokudani is the northern limit of Japanese Macaque habitat. No (non-human) primate is known to live in a colder climate.〔(Explore the Heart of Japan - Snow Monkeys )〕 Image:JapaneseMacaqueM2287.jpg|Macaque in outdoor bath at Jigokudani Monkey Park Image:Jigokudani hotspring in Nagano Japan 001.jpg|Macaques enjoying an onsen in Jigokudani Monkey Park in Nagano Image:JapaneseMacaqueM2262.jpg|This ''rotenburo'' at Jigokudani Onsen is for Japanese Macaques. Image:Japanese Macaque Fuscata Image 354.jpg|Macaque in an onsen at the Jigokudani Monkey Park near Nagano Japan. Image:Japanese Macaque Fuscata Image 365.jpg|Japanese Macaca fuscata in the river at the Jigokudani Monkey Park. Image:Japanese Macaque Fuscata Image 370.jpg|An alpha male at the Jigokudani Monkey Park. Image:Japanese Macaque Fuscata Image 367.jpg|A couple of Japanese Macaques lounging in the Onsen. File:Jigokudani Monkey Park - hotsprings.ogv|(video) A few monkeys bathe in the hotsprings.] ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jigokudani Monkey Park」の詳細全文を読む スポンサード リンク
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