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Southern Yatsugatake Volcanic Group

Coordinates:35°58′15″N138°22′12″E/ 35.97083°N 138.37000°E/35.97083; 138.37000
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Southern Yatsugatake Volcanic Group
Yatsugatake fromMount Gongen(August 2010)
Highest point
PeakMount Aka
Elevation2,899 m (9,511 ft)
Coordinates35°58′15″N138°22′12″E/ 35.97083°N 138.37000°E/35.97083; 138.37000
Naming
EtymologySouthern mountains with eight peaks
Native name
Geography
Southern Yatsugatake Volcanic Group is located in Japan
Southern Yatsugatake Volcanic Group
Southern Yatsugatake Volcanic Group
CountryJapan
PrefecturesNagano Prefecture and Yamanashi Prefecture
RegionChūbu
DistrictsMinamisakuandSuwa
MunicipalitiesHara,Fujimi,Chino,HokutoandMinamimaki
Parent rangeYatsugatake Mountains
Borders onNorthern Yatsugatake Volcanic Group
BiomeAlpine climate
Geology
OrogenyIsland arc
Age of rockQuaternary
Type of rockVolcanic
Yatsugatake from Mt. Kitayoko (June 2007)

Southern Yatsugatake Volcanic Group(Nam bát ヶ nhạc,Minami-Yatsugatake),also known as justYatsugatakeis avolcanic groupof inactivevolcanoeslocated on the border ofNagano PrefectureandYamanashi PrefectureonHonshūinJapan.

Description[edit]

The Southern Yatsugatake Volcanic Group is part of theYatsugatake Mountains.The southern group is defined as the mountains south of theNatsuzawa Pass.The highest peak of the mountains isMount Akaand the elevation is 2,899 metres.

The southern Yatugatake mountains are steep and have alpine characteristics. The mountains of theNorthern Yatsugatake Volcanic Groupare gentler and lower.Mount Tateshinais also part of the Northern Yatsugatake mountains, but is listed separately.

This volcanic group is listed amongthe 100 famous mountains in Japan.There the mountains are listed asYatsugatake.

These mountains are part of theYatsugatake-Chūshin Kōgen Quasi-National Park.[1]

Geology[edit]

The volcanoes arestratovolcanoesthat are 1 million to 200,000 years old. The rock is mainlybasaltandandesite.[2]

Climate[edit]

Climate data forNobeyama Station,1991–2020 normals, extremes 1978–present
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 11.9
(53.4) 		15.6
(60.1) 		20.1
(68.2) 		24.9
(76.8) 		26.5
(79.7) 		28.6
(83.5) 		30.7
(87.3) 		31.0
(87.8) 		29.1
(84.4) 		24.9
(76.8) 		19.7
(67.5) 		16.9
(62.4) 		31.0
(87.8)
Mean daily maximum °C (°F) 0.1
(32.2) 		1.1
(34.0) 		5.4
(41.7) 		12.1
(53.8) 		17.2
(63.0) 		19.9
(67.8) 		23.7
(74.7) 		24.7
(76.5) 		20.3
(68.5) 		14.7
(58.5) 		9.6
(49.3) 		3.5
(38.3) 		12.7
(54.9)
Daily mean °C (°F) −5.3
(22.5) 		−4.5
(23.9) 		−0.3
(31.5) 		5.8
(42.4) 		11.0
(51.8) 		14.8
(58.6) 		18.9
(66.0) 		19.5
(67.1) 		15.5
(59.9) 		9.3
(48.7) 		3.8
(38.8) 		−1.9
(28.6) 		7.2
(45.0)
Mean daily minimum °C (°F) −12.2
(10.0) 		−11.4
(11.5) 		−6.4
(20.5) 		−0.6
(30.9) 		4.9
(40.8) 		10.2
(50.4) 		15.0
(59.0) 		15.5
(59.9) 		11.4
(52.5) 		4.4
(39.9) 		−1.8
(28.8) 		−7.9
(17.8) 		1.8
(35.2)
Record low °C (°F) −25.1
(−13.2) 		−26.0
(−14.8) 		−25.3
(−13.5) 		−18.7
(−1.7) 		−6.6
(20.1) 		−1.4
(29.5) 		4.8
(40.6) 		4.2
(39.6) 		−2.2
(28.0) 		−8.9
(16.0) 		−14.1
(6.6) 		−23.1
(−9.6) 		−26.0
(−14.8)
Averageprecipitationmm (inches) 46.6
(1.83) 		49.8
(1.96) 		93.4
(3.68) 		100.6
(3.96) 		124.9
(4.92) 		172.6
(6.80) 		205.6
(8.09) 		166.8
(6.57) 		204.1
(8.04) 		164.6
(6.48) 		62.4
(2.46) 		41.0
(1.61) 		1,432.4
(56.39)
Average precipitation days(≥ 1.0 mm) 6.1 6.1 9.7 9.8 10.9 13.7 15.1 13.0 11.9 10.0 7.0 5.8 119.4
Mean monthlysunshine hours 175.7 167.1 179.8 188.3 186.0 127.7 142.2 160.1 124.1 140.2 167.9 175.5 1,933.7
Source 1:JMA[3]
Source 2:JMA[4]

List of peaks[edit]

The following major peaks make up part of the Southern Yatsugatake Volcanic Group and are listed by height:[2][5]

Name Height
Mount Aka(Xích nhạc,Aka-dake) 2,899.2 metres (9,511.8 ft)
Mount Yoko(Hoành nhạc,Yoko-dake) 2,829 metres (9,281 ft)
Mount Amida(A di đà nhạc,Amida-dake) 2,805 metres (9,203 ft)
Mount Iō(Lưu hoàng nhạc,Iō-dake) 2,760 metres (9,060 ft)
Mount Gongen(権 hiện nhạc,Gongen-dake) 2,715 metres (8,907 ft)
Mount Amigasa(Biên lạp sơn,Amigasa-yama) 2,523.7 metres (8,279.9 ft)
Mount Nishi(Tây nhạc,Nishi-dake) 2,398 metres (7,867 ft)

From the south, to Natuzawa Pass, beyond which the Northern Yatsugatake Mountains begin, the peaks are:

  • Mt. Amigasayama (2,524 m)
  • Mt. Nishidake (2,398 m)
  • Mt. Mitsugashira (2,580 m)
  • Mt. Gongendake (2,715 m)
  • Mt. Aka (2,899 m)
  • Mt. Nakadake (2,700 m)
  • Mt. Amidadake (2,805 m)
  • Mt. Yoko (2,829 m)
  • Mt. Iōdake (2,760 m)
  • Mt. Akaiwanoatama (2,656 m)
  • Mt. Minenomatsume (2,567 m)
  • Natsuzawa Pass (2,423 m)

From Natsuzawa Pass, it is possible to descend to Sakuradaira, via O-ren Hut and Natsuzawa Kosen, or directly to Honzawa Onsen, or continue through the Northern Yatsugatake Mountains.

Gallery[edit]

  • Mount Aka, the highest peak of the Yatsugatake mountains
    Mount Aka, the highest peak of the Yatsugatake mountains
  • Mount Gongen, from Mount Aka
    Mount Gongen, from Mount Aka
  • Mount Amida, Mount Iō, Mount Yoko and Mount Aka from Mount Gongen
    Mount Amida, Mount Iō, Mount Yoko and Mount Aka from Mount Gongen
  • Mount Amida, Mount Iō, Mount Yoko, Mount Aka and Mount Gongen from Mount Amigasa
    Mount Amida, Mount Iō, Mount Yoko, Mount Aka and Mount Gongen from Mount Amigasa
  • Mt Iō taken from Natsuzawa Pass in March 2024.jpg
    Mt Iō taken from Natsuzawa Pass in March 2024.jpg

See also[edit]

References[edit]

  1. ^Bát ヶ nhạc trung tín cao nguyên quốc định công viên.Japan Integrated Biodiversity Information System(in Japanese). Ministry of the Environment, Government of Japan. Archived fromthe originalon 2008-05-12.Retrieved2008-09-05.
  2. ^ab"YATSU-GA-TAKE".Quaternary Volcanoes of Japan.Geological Survey of Japan, AIST. 2006.Retrieved2008-08-19.
  3. ^Quan trắc sử thượng 1～10 vị の trị ( niên gian を thông じての trị ).JMA.RetrievedFebruary 16,2022.
  4. ^Khí tượng sảnh / bình niên trị ( niên ・ nguyệt ごとの trị ).JMA.RetrievedFebruary 16,2022.
  5. ^Hunt, Paul (1988). "14. Yatsu-ga-take".Hiking in Japan: An Adventurer's Guide to the Mountain Trails(First ed.). Tokyo: Kondansha International. pp. 111–115.ISBN0-87011-893-5.

External links[edit]

See also[edit]

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