is one of the
. The peak lies in the
Ashio Mountains of
Japan, on the border of
Nikkō
is a city located in Tochigi Prefecture, Japan. , the city had an estimated population of 80,239 in 36,531 households, and a population density of 55 persons per km2. The total area of the city is . It is a popular destination for Japanese and ...
in
Tochigi Prefecture
is a prefecture of Japan located in the Kantō region of Honshu. Tochigi Prefecture has a population of 1,943,886 (1 June 2019) and has a geographic area of 6,408 km2 (2,474 sq mi). Tochigi Prefecture borders Fukushima Prefecture to the nort ...
and
Numata in
Gunma Prefecture
is a prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 October 2019) and has a geographic area of 6,362 km2 (2,456 sq mi). Gunma Prefecture borders Niigata Prefecture and Fukushim ...
. Mount Sukai is an old
stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and p ...
, but with the whole mountain covered in forest today it does not appear like a typical volcano.
Hiking routes
The traditional ascent route starts at the trailhead in , Tochigi Prefecture, and leads via and to the top of Mount Sukai. In addition Mount Sukai can be reached from in Gunma Prefecture.
The Nokogiri (Japanese: saw) ridge between Mount Koshin and Mount Nokogiri on the Tochigi side features eleven peaks. There is also a winding trail avoiding the eleven peak ridge and Mount Koshin. It leads south of the ridge to before joining the ridge trail at Mount Nokogiri.
Religiously motivated mountain climbing in form of a three-mountain-race along Mounts Koshin, Nokogiri and Sukai was practised in the
Edo period
The or is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's 300 regional ''daimyo''. Emerging from the chaos of the Sengoku period, the Edo period was character ...
. There are ladders along the ascent to Mount Koshin and the ups and downs on Nokogiri's ridges. Many chains are present in precipitous spots. The route is not recommended for beginners.
There are
onsen
In Japan, are the country's hot springs and the bathing facilities and traditional inns around them. As a volcanically active country, Japan has many onsens scattered throughout all of its major islands. There are approximately 25,000 hot ...
at the trailhead in Ginzandaira. Lodging and bathing is possible here.
Making use of private transport the summit can be climbed in relatively short time along the Fudosawa route on the Gunma side.
Mountain huts
There is the unmanned near the summit of Mount Koshin.
See also
*
List of volcanoes in Japan
This is a list of active and extinct volcanoes in Japan. An Orange background indicates a volcano considered active by the Japan Meteorological Agency.
Hokkaido
Honshū
Izu Islands
Ogasawara Archipelago
The Ogasawara Archipela ...
*
List of mountains in Japan
The following is a list of the mountains and hills of Japan, ordered by height.
Mountains over 1000 meters
Mountains under 1000 meters
As the generally accepted definition of a mountain (versus a hill) is 1000 m of height and 500 m of pro ...
Summits in the surrounding
* , Known for the
butterwort
''Pinguicula'', commonly known as the butterworts, is a genus of carnivorous flowering plants in the family Lentibulariaceae. They use sticky, glandular leaves to lure, trap, and digest insects in order to supplement the poor mineral nutrition ...
Pinguicula ramosa
''Pinguicula ramosa'' is a species of butterwort, a carnivorous plant, endemic to the mountains of Nikkō National Park in Japan. It belongs to the section micranthus and is closely related to '' Pinguicula variegata''. It is unique in the genu ...
which grows here in the wild.
*
External links
*
Sukai San- Geological Survey of Japan
{{DEFAULTSORT:Sukai
Mountains of Tochigi Prefecture
Mountains of Gunma Prefecture
Volcanoes of Gunma Prefecture
Volcanoes of Tochigi Prefecture
Pleistocene stratovolcanoes
Stratovolcanoes of Japan
Volcanoes of Honshū