Kaikoma-gatake (甲斐駒ヶ岳, 2,967 m) is the pale-granite landmark at the northern end of Japan's Southern Alps, straddling the border between Hokuto in Yamanashi Prefecture and Ina in Nagano Prefecture. Seen from the Kofu basin it rises as a clean white pyramid, its summit zone of bright granite sand setting it apart from the darker, more forested peaks along the main Southern Alps spine. The mountain has two very different ways up: an alpine day-hike loop from the high pass of Kitazawa-toge, and the long, steep Kuroto ridge (黒戸尾根, Kuroto-one) — an old pilgrimage route counted among Japan's hardest standard climbs.
Why Fukada Chose Kaikoma-gatake
Fukada's signature praise for this mountain is unequivocal: even if asked to choose only ten mountains in all of Japan, he wrote, he would not leave this one off the list. The white granite that gives the peak its luminous quality, and its commanding visibility from the Kofu basin, are central to its appeal.
In Nihon Hyakumeizan, Kaikoma-gatake appears within Kyuya Fukada's north-to-south sequence through the Southern Alps (alongside neighbours such as Senjo-gatake, Hozosan and Kita-dake). The book is ordered roughly geographically, not as a ranking of merit.
The Mountain
| Attribute | Detail |
|---|---|
| Elevation | 2,967 m (9,734 ft) |
| Prefectures | Yamanashi (Hokuto) and Nagano (Ina) — on the border |
| Range | Minami (Southern) Alps — northern end |
| Character | Pale granite; rocky summit; bright white granite-sand zones |
| Hyakumeizan | Included (book order is roughly north-to-south, not a ranking) |
| Summit views | Kita-dake, Senjo-gatake, the Hozo Sanzan, Nokogiridake |
| Typical season | June – early November (bus-dependent) |
A notable feature just below the summit to the southeast is Marishiten (摩利支天, about 2,820 m), a rocky spire and object of mountain worship that stands out clearly when viewed from Komatsumine.
The Routes
Kitazawa-toge Loop (Sensui-toge / Komatsumine / Futagoyama)
Grade: Challenging
- Distance: ~8.8 km loop from Kitazawa-toge (2,032 m)
- Time: ~7 hours round trip (reference time around 7h10m); ascent ~4h20m, descent ~3h
- Route: Kitazawa-toge → Sensui-toge → Komatsumine (駒津峰, 2,752 m) → Kaikoma-gatake summit, descending via Futagoyama (双児山, 2,649 m) back to Kitazawa-toge.
- Character: The standard alpine approach, sharing its trailhead with Senjo-gatake. The white granite summit and the wide panorama across the northern Southern Alps are the highlights.
Kuroto Ridge (黒戸尾根, Kuroto-one)
Grade: Strenuous
- Trailhead: Ojiragawa Keikoku (尾白川渓谷) parking area, on the Yamanashi lowland side
- Elevation gain: ~2,197 m
- Time (per Hokuto city): ascent ~16 hours, descent ~6h20m — almost always split over two days with an overnight at Shichijo Hut
- Character: A historic pilgrimage route and one of Japan's three great steep ascents. It includes the notorious Hawatari (刃渡り), an exposed traverse along a near-vertical edge, followed by sustained ladders and chains. For experienced, very fit hikers only.
Getting There
The standard access is from the Nagano (Ina) side. The Minami Alps Forest Road bus runs from Todaiguchi (戸台口, also called Sennaki / 仙流荘) to Kitazawa-toge in about 55 minutes. Private cars are not allowed on the forest road, so the bus (or a taxi) is the only way up to the pass.
The bus operates roughly from 1 June to early November (around 3 November, varying by year). Confirm the current timetable before travelling.
Note: the Yamanashi-side forest road linking Hirogawara and Kitazawa-toge is currently suspended for disaster-recovery work, so the pass cannot be reached from the Hirogawara side at present.
For the Kuroto ridge, hikers start from the Ojiragawa Keikoku trailhead on the Yamanashi side instead of using the bus to the pass.
Mountain Huts
Shichijo Hut (七丈小屋, Shichijo-goya): The only hut on the Kuroto ridge, at the 7th station. Reservation-only for both lodging and tent sites, capacity around 24, staffed year-round. Phone reservations: 090-3226-2967 (reception 13:00–20:00). Important for safety: there is no water source on the Kuroto ridge below the hut, though water is available right in front of the hut itself.
Kitazawa-toge base huts: At the pass, Komorebi-sanso (北沢峠こもれび山荘) and Choei-goya (長衛小屋, with a tent site) serve hikers using the Kitazawa-toge loop. There is no hut on the summit of Kaikoma-gatake.
Flora and Wildlife
Ptarmigan (ライチョウ / raicho): The Southern Alps are within the range of Japan's protected rock ptarmigan. The haimatsu (creeping pine) zone above the tree line, on the upper climb from Komatsumine toward Sensui-toge, is ptarmigan habitat — watch quietly and keep your distance.
Asiatic black bears (ツキノワグマ): The black bear is the bear species of the Honshu Southern Alps, present in the lower forested sections of the Kuroto ridge. Make noise on quiet forest stretches and manage food carefully. (Bear spray is generally associated with Hokkaido's brown bears; for Honshu black bears, noise and food discipline are the main precautions.)
White granite landscape: The summit's pale granite and bright white sand give Kaikoma-gatake one of the most distinctive alpine settings in Japan — open and luminous, visibly different from the darker peaks on either side.
Seasonal Guide
June: Season opens as the forest-road bus begins running. Lingering snow possible on upper approaches early in the month.
July – August: Peak season. The Kitazawa-toge loop is busy, sharing its trailhead with Senjo-gatake hikers.
September – October: Often the best conditions, with clear views across the northern Southern Alps. Autumn colours lower down later in the period.
Early November: Late season; the forest-road bus winds down for the year, after which the pass is effectively closed to general access.
Practical Tips for Foreign Visitors
Book Shichijo Hut ahead. If you attempt the Kuroto ridge, the only hut is reservation-only and fills up. Carry enough water — there is no resupply on the ridge below the hut.
Plan around the bus, not your car. Kitazawa-toge is reached only by the Minami Alps Forest Road bus from the Nagano side. Check the current schedule and the suspension status of the Yamanashi-side road before you commit to a date.
Match the route to your level. The Kitazawa-toge loop is a demanding but reasonable day for a fit hiker. The Kuroto ridge, with the Hawatari traverse, chains and ladders and roughly 2,197 m of gain, is a different order of difficulty and is best done over two days by experienced parties.
Combine with Senjo-gatake. Because both peaks share the Kitazawa-toge trailhead, many hikers climb one each over two days using the same base.
Frequently Asked Questions
Can Kaikoma-gatake be done as a day hike?
Yes — the Kitazawa-toge loop via Sensui-toge, Komatsumine and Futagoyama is a roughly 7-hour round trip (about 8.8 km) that fit hikers complete in a day. The Kuroto ridge is the opposite: with around 2,197 m of gain it is almost always split over two days with an overnight at Shichijo Hut.
How do I get to Kaikoma-gatake without a car?
Take the Minami Alps Forest Road bus from Todaiguchi (戸台口, also called Sennaki / 仙流荘) on the Nagano (Ina) side to Kitazawa-toge, about 55 minutes. Private cars are not allowed on the forest road, so the bus or a taxi is the only way up to the pass. The Yamanashi-side road from Hirogawara is currently suspended for disaster-recovery work.
Do I need to reserve the mountain hut?
Yes. Shichijo Hut, the only hut on the Kuroto ridge, is reservation-only for both lodging and tent sites (capacity around 24) and fills up; book ahead by phone at 090-3226-2967. At Kitazawa-toge, Komorebi-sanso and Choei-goya serve hikers on the loop. There is no hut on the summit.
When is the best season to climb?
September and October often bring the best conditions, with clear views across the northern Southern Alps. The usual window is June to early November, tied to the forest-road bus; early-season hikers in June may still meet lingering snow on the upper approaches.
What about bears, and is bear spray needed?
The bear of the Honshu Southern Alps is the Asiatic black bear (ツキノワグマ), found in the lower forested sections of the Kuroto ridge. The main precautions are making noise on quiet forest stretches and managing food carefully; bear spray is generally associated with Hokkaido's brown bears rather than Honshu black bears.
This guide is part of the Japan's 100 Famous Mountains: Complete Hyakumeizan Guide series.
