Mount Jōnen

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Mountain in Japan

title: "Mount Jōnen" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["hida-mountains", "chūbu-sangaku-national-park", "mountains-of-nagano-prefecture", "japan-alps"] description: "Mountain in Japan" topic_path: "geography/japan" source: "https://en.wikipedia.org/wiki/Mount_Jōnen" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Mountain in Japan ::

::data[format=table title="Infobox mountain"]

Field	Value
name	Mount Jōnen
other_name	常念岳
photo	Mount Jonen and Mount Yokotoshi from the Azusa River.jpg
photo_caption	Mount Jōnen, Mount Yokotooshi and Azusa River
in spring from Azumi Basin
elevation_m	2857
elevation_ref
listing	100 Famous Japanese Mountains
List of mountains in Japan
language	Japanese
location	Azumino, Nagano and Matsumoto, Nagano, Japan
range	Jōnen Mountains in Hida Mountains
map	Japan
map_caption	Location of Mount Jōnen in Japan.
coordinates
coordinates_ref
topo	Geospatial Information Authority 25000:1 穂高岳
50,000:1 上高地
first_ascent	Walter Weston in 1894
(Mountaineering)
::

Mount Jōnen is one of the 100 Famous Japanese Mountains, reaching the height of 2857 m. It is situated in Japan's Hida Mountains in Nagano Prefecture and in Chūbu-Sangaku National Park. The shape of the mountain looks like the triangle. It can be seen from Azumi Basin.

Outline

This mountain is formed with Granite. Before 1959 nine kinds of butterfly on high mountains can be seen around the mountain. Colias erate and others can be seen now. The shape of the remaining snow of this mountain had decided the time when it farmed. The shape was called Jōnen-Bō.

History

Summer 1894: Englishman Walter Weston was the first non-Japanese to reach the summit.
Summer 1906: Usui Kojima summited.
July 27, 1919: Mountain hut of Jōnen Hut was opened.
1922: Kyūya Fukada stayed at the Jōnen Hut, and climbed this mountain.
June 1931: The double accident of the climbing mountain party and the rescue team occurred.
December 4, 1934: This area was specified to the Chūbu-Sangaku National Park.
1993: Postage stamp of Jōnen Kasa with Matsumoto Castle was put on the market by the Ministry of Posts and Telecommunications (Japan).
May 28, 2007: NHK broadcasts the television program concerning Mount Jōnen in the series programs of excellent mountain in Japan.
September 10, 2010: NHK broadcasts the television program concerning Mount Jōnen and the high mountain butterfly.

Mountaineering

::figure[src="https://upload.wikimedia.org/wikipedia/commons/9/98/Mount_Jonen_from_Mount_Yokotooshi_2004-5-2.JPG" caption="Mount Jōnen, Jōnen Hut and the climbing trail from Mount Yokotooshi"] ::

Main ascent routes

There are three climbing routes to the top of the mountain.

;Ichino River route :Hie-Daira - Ichino River - Munatuki-hachō - Jōnen Hut(Jōnen-Nokkoshi) - Mount Jōnen ;Mount Mae-Jōnen route :Mitsumata(三股) - Hon river - Mount Mae-Jōnen - Mount Jōnen ;Traverses Route of Jōnen Mountains (from north and south) :There are several stating points to climb.(Kamikōchi, Tokusawa, Yokoo, Mitsumata, from Mount Otensuo, and others)

::figure[src="https://upload.wikimedia.org/wikipedia/commons/a/a0/Huts_Jyonen_2004-5-2.JPG" caption="Jōnen Hut and [[Mount Yari]] in spring"] ::

Mountain hut

Thera are several Mountain hut around Mount Jōnen. There is the Campsite on each hut.

Jōnen Hut (常念小屋) - On the pass of Jōnen Pass between Mount Jōnen and Mount Yokotooshi. It is one of the oldest hut in Japan.
Mount Chō Hut (蝶ヶ岳ヒュッテ) - Near the top of Mount Chō.
Yokoo Mountain Cottage (横尾山荘) - In Yokoo most in the north of Kamikochi.
Daiten Cottage (大天荘) - Near the top of Mount Otensyo.

Geography

Nearby Mountains

It is on the sub ridge line of Jōnen Mountains in the southeast part of the Hida Mountains. There is a small peak of Mount Mae-Jōnen in the southeast by east. ::figure[src="https://upload.wikimedia.org/wikipedia/commons/6/63/Mount_Yokotoshi_and_Mount_Onensho_from_Mount_Jonen_(1999-08-01).jpg" caption="Mount Yokotooshi and Mount Otensyo
from Mount Jōnen"] ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/3/3d/Mount_Cho_from_Mount_Hotaka_2002-08-31.jpg" caption="Mount Hotaka"] ::

::data[format=table] | Image | Mountain | Elevation | Distance from the Top | Note | |---|---|---|---|---| | [[File:Mount Yari from Mount Jonen 1999-8-1.jpg|100px]] | Mt. Yari 槍ヶ岳 | 3180 m | 7.4 km | 100 Famous | | [[File:Otenshodake from Enzanso 1999-5-9.jpg|100px]] | Mt. Otensyo 大天井岳 | 2921.91 m | 5.0 km | tallest mountain in Jōnen Mountains 200 Famous | | [[File:Yokotoshidake and Jonengoya 2004-5-2.jpg|100px]] | Mt. Yokotooshi 横通岳 | 2766.99 m | 1.9 km | | | [[File:Mount Jonen from Mount Akaiwa 2003-9-14.jpg|100px]] | Mt. Jōnen 常念岳 | 2857 m | 0 km | 100 Famous | | [[File:Mount MaeJonen from Mitsumata 2001-11-22.jpg|100px]] | Mt. Mae-Jōnen 前常念岳 | 2661.78 m | 2.0 km | | | [[File:Chogatake from Jyonendake 1999-8-1.jpg|100px]] | Mt. Chō 蝶ヶ岳 | 2677 m | 4.2 km | 100 Famous | | [[File:Mount Hotaka from Mount Jonen 1999-8-1.jpg|100px]] | Mt. Hotaka 穂高岳 | 3190 m | 8.2 km | tallest mountain in Hida Mountains 100 Famous | ::

Source river

Each source river joins the main stream of Shinano River, then flows to the Sea of Japan.

Ichinomata Valley (Tributary of Azusa River)
Jōnen River, Ichino River and Nino river (tributary of Sai (Nagano) River)

Gallery

Image:071006 Jonendake frm Yari.jpg|Mount Jōnen from Mount Yari Image:Mount Jonen from Mount Yari and sunrise 2003-10-5.jpg|Mount Jōnen and sunrise from Mount Yari Image:Mount Jonen from Mount Cho 2001-11-11.jpg|Mount Jōnen where it snowed from Mount Chō Image:Mount Jonen from MaeJonen 1999-8-1.jpg|Mount Jōnen in summer from Mount Mae-Jōnen Image:Mount Yari from Mount Jonen 2001-10-6.jpg|Mount Yari that turned red in autumn from Mount Jōnen Image:Mount Jonen from Mount Yokotoshi, Oct 2023.jpg|Mount Jonen and Jonen Hut from Mount Yokotoshi, October 2023

References

"Map inspection service of 25000:1 穂高岳". [[Geospatial Information Authority of Japan]].
"Mountains altitude list in Japan(Nagano)". Geospatial Information Authority of Japan.
(1982). "100 Famous Japanese Mountains". The Asahi Shimbun Companyin.
"Chūbu-Sangaku National Park". [[Ministry of the Environment (Japan)]].
(1992). "日本山名辞典)". [[Sanseido]].
(1992). "1000 Japanese Mountains". YAMA-KEI Publishers.
"The back number of the program (Kita-Alps Mount Jōnen)". NHK.
Walter Weston. (2005). "日本アルプスの登山と探検".
(1997). "The story of mountain huts in Northern Japanese Alps". [[Tokyo Shimbun]].
(2007). "100 Famous Japanese Mountains with postmark of stamp with the scenery". Hukurōsha.
"Mount Jōnen on Eco channel of NHK". NHK.
(2000). "Alpen guide Kamikōchi, Mount Yari and Mount Hotaka (アルペンガイド)". YAMA-KEI Publishers.
(2010). "山と高原地図". Shobunsha Publications.
"Information inspection service of the Triangulation station". [[Geospatial Information Authority of Japan]],(高山-上高地).

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