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Group of complex volcanoes on the island of Honshu

Mount Nasu

那須岳

Nasu Mountains

Highest point
Elevation| 1,916.9 m (6,289 ft)
Coordinates| 37°09′N 139°57′E / 37.150°N 139.950°E / 37.150; 139.950Coordinates: 37°09′N 139°57′E / 37.150°N 139.950°E / 37.150; 139.950
Naming
Language of name| Japanese
Geography

Mount Nasu

On the border of Nasushiohara and Nasu of Tochigi Prefecture, Nishigō, Nishishirakawa of Fukushima Prefecture, Japan

Parent range| Ōu Mountains
Geology
Mountain type| Complex volcano
Last eruption| November 1963

Mount Nasu (那須岳, Nasu-dake) is a group of complex volcanoes located in the northeast part of Nikkō National Park, Japan. The tallest peak is Sanbonyari Peak at a height of 1,916.9 m (6,289 ft). Mount Nasu is one of the 100 Famous Japanese Mountains.

## Contents

* 1 Major peaks
* 2 Climate
* 3 Eruption
* 4 Access
* 5 Gallery
* 6 See also
* 7 References
* 8 External links

## Major peaks[edit]

Mount Nasu has the following major peaks:

* Sanbonyari Peak – 1916.9 m
* Chausu Peak – 1915 m
* Asahi Peak – 1896 m
* Minamigatsusan – 1776 m
* Kuro-oya Peak – 1589 m

These peaks are known collectively as Nasu Five Peaks (那須5岳, Nasu-Go-Take).

## Climate[edit]

Climate data for Mount Nasu (1991−2020 normals, extremes 1976−present)

Month  | Jan  | Feb  | Mar  | Apr  | May  | Jun  | Jul  | Aug  | Sep  | Oct  | Nov  | Dec  | Year
Record high °C (°F)  | 12.7
(54.9)  | 16.8
(62.2)  | 21.1
(70.0)  | 26.8
(80.2)  | 29.6
(85.3)  | 30.3
(86.5)  | 31.8
(89.2)  | 32.2
(90.0)  | 29.5
(85.1)  | 24.6
(76.3)  | 20.0
(68.0)  | 17.4
(63.3)  | 32.2
(90.0)
Average high °C (°F)  | 1.9
(35.4)  | 2.7
(36.9)  | 6.8
(44.2)  | 13.0
(55.4)  | 18.2
(64.8)  | 20.7
(69.3)  | 24.3
(75.7)  | 25.4
(77.7)  | 21.4
(70.5)  | 16.1
(61.0)  | 10.9
(51.6)  | 5.1
(41.2)  | 13.9
(57.0)
Daily mean °C (°F)  | −1.7
(28.9)  | −1.3
(29.7)  | 2.0
(35.6)  | 7.8
(46.0)  | 13.0
(55.4)  | 16.4
(61.5)  | 20.2
(68.4)  | 21.0
(69.8)  | 17.3
(63.1)  | 11.8
(53.2)  | 6.4
(43.5)  | 1.1
(34.0)  | 9.5
(49.1)
Average low °C (°F)  | −5.3
(22.5)  | −5.3
(22.5)  | −2.4
(27.7)  | 2.6
(36.7)  | 7.7
(45.9)  | 12.3
(54.1)  | 16.7
(62.1)  | 17.5
(63.5)  | 13.8
(56.8)  | 7.7
(45.9)  | 2.0
(35.6)  | −2.6
(27.3)  | 5.4
(41.7)
Record low °C (°F)  | −11.7
(10.9)  | −12.1
(10.2)  | −10.4
(13.3)  | −6.0
(21.2)  | −2.3
(27.9)  | 3.6
(38.5)  | 8.7
(47.7)  | 8.9
(48.0)  | 3.2
(37.8)  | −1.2
(29.8)  | −6.1
(21.0)  | −10.2
(13.6)  | −12.1
(10.2)
Average precipitation mm (inches)  | 52.6
(2.07)  | 42.8
(1.69)  | 101.6
(4.00)  | 139.6
(5.50)  | 180.8
(7.12)  | 220.5
(8.68)  | 305.7
(12.04)  | 303.9
(11.96)  | 305.3
(12.02)  | 212.6
(8.37)  | 89.2
(3.51)  | 60.1
(2.37)  | 2,014.7
(79.33)
Average snowfall cm (inches)  | 103
(41)  | 79
(31)  | 45
(18)  | 7
(2.8)  | 0
(0)  | 0
(0)  | 0
(0)  | 0
(0)  | 0
(0)  | 0
(0)  | 4
(1.6)  | 55
(22)  | 293
(116.4)
Average precipitation days (≥ 1.0 mm) | 9.1  | 8.3  | 10.4  | 11.3  | 12.1  | 15.9  | 18.3  | 17.0  | 14.8  | 11.5  | 8.3  | 9.1  | 146.1
Average snowy days (≥ 1 cm) | 11.5  | 8.8  | 5.5  | 0.6  | 0  | 0  | 0  | 0  | 0  | 0  | 0.4  | 5.9  | 32.7
Mean monthly sunshine hours | 131.0  | 129.0  | 156.4  | 170.4  | 169.1  | 108.8  | 98.7  | 115.3  | 98.9  | 115.1  | 130.1  | 132.6  | 1,555.2
Source 1: JMA[1]
Source 2: JMA[2]

## Eruption[edit]

It is estimated that Mount Nasu started erupting 600 thousand years ago. The eruption started from the north end of the mountain range, at Kashi-Asahi Peak. Only Chausu Peak is active today.

## Access[edit]

* Nasu Sancho Station of Nasu Ropeway
* Sandogoya Onsen Bus Stop of Kanto Transportation

## Gallery[edit]

* Chausu lava dome and Asahi Peak

* Chausu lava dome and fumes

* Asahi Peak

* West view from Sanbonyari Peak

* Sanbonyari Peak and snow in summer

* At the Sanbonyari Peak

* Topographic map

* To Asahi Peak

## See also[edit]

* List of mountains in Japan

## References[edit]

1. ^ 観測史上1～10位の値（年間を通じての値）. JMA. Retrieved February 18, 2022.
2. ^ 気象庁 / 平年値（年・月ごとの値）. JMA. Retrieved February 18, 2022.

## External links[edit]

Wikimedia Commons has media related to Mount Nasu.

* Nasudake – Japan Meteorological Agency (in Japanese)
* "Nasudake: National catalogue of the active volcanoes in Japan" (PDF). – Japan Meteorological Agency
* Nasudake – Geological Survey of Japan
* "Nasudake". Global Volcanism Program. Smithsonian Institution. Retrieved 2021-06-24.

* v
* t
* e

100 Famous Japanese Mountains

Hokkaidō|

* Mt. Rishiri
* Mt. Rausu
* Mt. Shari
* Mt. Akan
* Mt. Taisetsu
* Mt. Tomuraushi
* Mt. Tokachi
* Mt. Poroshiri
* Mt. Yōtei

Tōhoku region
Jōshinetsu region|

* Mt. Iwaki
* Hakkōda
* Hachimantai
* Mt. Iwate
* Mt. Hayachine
* Mt. Chokai
* Mt. Gassan
* Mt. Asahi
* Mt. Zaō
* Mt. Iide
* Mt. Azuma
* Mt. Adatara
* Mt. Bandai
* Mt. Aizu-Koma
* Mt. Echigo (Uonuma-Koma)
* Mt. Hiragatake
* Mt. Makihata
* Mt. Hiuchigatake
* Mt. Shibutsu
* Mt. Tanigawa
* Mt. Naeba
* Mt. Myōkō
* Hiuchiyama
* Mt. Amakazari
* Mt. Takatsuma

Kantō region|

* Mt. Nantai
* Mt. Oku-Shirane
* Mt. Nasu
* Mt. Sukai
* Mount Hotaka
* Mt. Akagi
* Mt. Kusatsu-Shirane
* Mt. Azumaya
* Mt. Asama
* Mt. Tsukuba
* Mt. Tanzawa
* Mt. Ryōkami
* Mt. Kumotori
* Mt. Kobushi
* Mt. Kinpu
* Mt. Mizugaki
* Mt. Daibosatsu
* Mt. Fuji
* Mt. Amagi

Chūbu region|

| Hida Mountains
(Northern Alps)|

* Mt. Shirouma
* Mt. Goryu
* Mt. Kashimayari
* Mt. Tsurugi
* Mt. Tate
* Mt. Yakushi
* Mt. Kurobegorō
* Mt. Kuro (Suishō)
* Mt. Washiba
* Mt. Yari
* Mt. Hotaka
* Mt. Jōnen
* Mt. Kasa
* Mt. Yake
* Mt. Norikura

|

Kiso Mountains
(Central Alps)|

* Mt. Kisokoma
* Mt. Utsugi
* Mt. Ena

Akaishi Mountains
(Southern Alps)|

* Mt. Kaikoma
* Mt. Senjō
* Mt. Hōō
* Mt. Kita
* Mt. Aino
* Mt. Shiomi
* Mt. Warusawa
* Mt. Akaishi
* Mt. Hijiri
* Mt. Tekari

Others|

* Mt. Fuji
* Mt. Ontake
* Utsukushigahara [ja]
* Mt. Kirigamine
* Mt. Tateshina
* Yatsugatake
* Mt. Haku
* Mt. Arashima
* Mt. Azumaya

Western Japan|

* Mt. Ibuki
* Mt. Ōdaigahara
* Mt. Ōmine
* Daisen
* Mt. Tsurugi
* Mt. Ishizuchi
* Mt. Kujū (Kokonoe)
* Mt. Sobo
* Mt. Aso
* Mt. Kirishima
* Mt. Kaimon
* Mt. Miyanoura

* Kyūya Fukada
* List of mountains in Japan
* Three-thousanders (in Japan)
* Media related to 100 Famous Japanese Mountains at Wikimedia Commons

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