Aizu-Komagatake (2,133 m) sits in Hinoemata, in the Minami-Aizu district of Fukushima Prefecture, within Oze National Park. Its signature is not a rocky summit but a broad, gentle alpine wetland: marshy meadows, scattered ponds, and a nearly level ridge running out to Chumon-dake, all dense with alpine flowers in season. The name "Komagatake" (horse peak) comes from a colt-shaped snow pattern that appears on the mountain in the residual-snow season of spring. It is one of the more rewarding flower mountains in the Hyakumeizan list, reached by a well-trodden trail from the village of Hinoemata.
Why Fukada Chose Aizu-Komagatake
Aizu-Komagatake is one of the hundred mountains selected by Kyuya Fukada. His book lists the mountains in a roughly geographic north-to-south order rather than ranking them by quality, so its place in the sequence reflects geography, not a score. Fukada's selection favoured mountains with distinct character, and Aizu-Komagatake offers a quieter, gentler alpine experience than most: rolling wetland meadows and ponds high on the mountain, set against the neighbouring peaks of the Oze region.
The Mountain
| Attribute | Detail |
|---|---|
| Elevation | 2,133 m (6,998 ft) |
| Prefecture | Fukushima (Hinoemata, Minami-Aizu) |
| National park | Oze National Park, adjacent to Hiuchigatake |
| Character | Gentle alpine wetland; ponds and flat ridge to Chumon-dake (~2,060 m) |
| Recognition | Selected as one of the New Flower Hyakumeizan |
| Book order | Roughly north-to-south in Fukada's book; not a ranking |
| Typical season | June – October |
The high ground is the draw here. Above the forest, the trail reaches Koma-no-Odaike, a pond set in open wetland, and from near the summit a nearly flat ridge of marshy meadow and scattered ponds runs out to Chumon-dake. The nearby landmark is Hiuchigatake and the wider Oze landscape; Nikko-Shirane lies to the south.
The Routes
Standard Route: Takizawa Trailhead → Summit → Chumon-dake
Grade: Moderate
- Start: Takizawa trailhead in Hinoemata (parking for around 20 cars, toilets, no water at the lot)
- Approach: From the Komagatake-tozanguchi bus stop it is roughly a 30-minute road walk to the actual trailhead
- Water: About 1.5 hours up to the only water source — refill here, as there is no water beyond it
- Upper section: Continue past the water source to Koma-no-Koya hut; the summit is about 15–20 minutes above the hut
- Beyond the summit: The ridge to Chumon-dake (~2,060 m) is nearly level wetland, a round trip of about 2 hours from the hut
The signature experience is the high wetland: Koma-no-Odaike and Chumon-dake, with their ponds and alpine flowers, on largely gentle terrain.
Loop via Otozaki-toge to Kirinte
Grade: Strenuous
For a longer day, ascend the Takizawa route and descend via Otozaki-toge (the pass on the Kirinte side) to the Kirinte trailhead. This is the genuine traverse option and adds considerable distance and time.
Getting There
By train and bus:
Take the Tobu Railway from Asakusa, connecting via the Yagan Railway and Aizu Railway to Aizu-Tajima Station. From there, transfer to an Aizu Bus bound for Hinoemata and ride to the Komagatake-tozanguchi stop. The bus runs only seasonally (roughly May 1 to October 31, a few services a day), with a fare of around 2,500 yen. Note that the bus terminus changed from Aizu-Kogen-Ozeguchi to Aizu-Tajima in October 2024.
By car:
From the Tohoku Expressway, exit at Nishi-Nasuno-Shiobara IC, then take Route 400 and Route 352 into Hinoemata to the Aizu-Komagatake trailhead — roughly 2.5 hours from the interchange.
Mountain Huts
Koma-no-Koya (駒の小屋): A mountain hut high on the mountain at about 1,953 m, near Koma-no-Odaike — not a valley-base lodge. It is staffed by a resident caretaker from late May to late October, and advance reservation is required through the Hinoemata Village Tourism Association (0241-75-2432). The hut is self-catering; bedding is provided but meals are not, so carry your own food and stove.
Flora and Wildlife
Alpine flowers and wetland plants: The high wetland is the heart of the mountain. Hakusan-kozakura blooms around the end of the rainy season, and the meadows and pond margins along the ridge to Chumon-dake carry abundant alpine flowers through the summer. The mountain's selection as one of the New Flower Hyakumeizan reflects this.
Asiatic black bears (ツキノワグマ): Black bears are present in this region. The Takizawa route is a popular and well-used Hyakumeizan trail, but bears inhabit the surrounding forest. Carry bear spray, make noise as you walk, and avoid hiking alone, especially in the forested lower section.
Lower forest: The climb begins in forest before opening onto the wetland above. Autumn colour through the lower woodland is at its best in mid-October.
Seasonal Guide
June – July: The trail opens as snow clears. Residual snow can linger into June on the higher ground, and the rainy-season's end brings the first flush of alpine flowers.
August: Peak summer hiking, with the wetland meadows and ponds at their fullest in settled weather.
September – October: Often the most settled conditions, with autumn colour in the lower forest peaking around mid-October.
Practical Tips for Foreign Visitors
Plan around the bus season: Public access depends on the seasonal Aizu Bus (roughly May to October). Outside that window, a car is effectively required. Confirm the current timetable before travelling, and remember the terminus moved to Aizu-Tajima in October 2024.
Carry enough water: There is no water at the parking lot and only one source on the climb. Fill up there and carry enough for the flat ridge out to Chumon-dake and back.
Reserve the hut in advance: If staying at Koma-no-Koya, book ahead through the Hinoemata Village Tourism Association and bring your own food and stove, as the hut is self-catering.
File a hiking plan: Submit a climbing plan before you set out, and check weather carefully — the high wetland is exposed and conditions can change quickly.
Frequently Asked Questions
Can Aizu-Komagatake be done as a day hike, or do you need to stay overnight?
It is commonly done as a day hike from the Takizawa trailhead: the climb passes the only water source at about 1.5 hours, continues to Koma-no-Koya hut, and the summit is about 15–20 minutes above the hut. Many hikers add the nearly level ridge to Chumon-dake, a round trip of about 2 hours from the hut. Staying overnight at Koma-no-Koya is an option for a more relaxed pace.
Can you reach the trailhead without a car?
Yes, but only in season. Take the Tobu Railway from Asakusa, connect via the Yagan Railway and Aizu Railway to Aizu-Tajima Station, then transfer to an Aizu Bus bound for Hinoemata and ride to the Komagatake-tozanguchi stop. The bus runs only seasonally (roughly May 1 to October 31, a few services a day), so outside that window a car is effectively required. The terminus changed from Aizu-Kogen-Ozeguchi to Aizu-Tajima in October 2024.
Do you need to reserve the mountain hut?
Yes. Advance reservation for Koma-no-Koya is required through the Hinoemata Village Tourism Association (0241-75-2432). The hut is staffed by a resident caretaker from late May to late October. It is self-catering: bedding is provided but meals are not, so bring your own food and stove.
When is the best season, and when does the residual snow clear?
The typical season is June to October. Residual snow can linger into June on the higher ground, and the end of the rainy season brings the first flush of alpine flowers. August is peak summer with the wetland meadows and ponds at their fullest, while September and October often have the most settled conditions, with autumn colour in the lower forest peaking around mid-October.
Are there bears, and what should I do about them?
Asiatic black bears are present and inhabit the surrounding forest, even though the Takizawa route is a popular and well-used trail. Carry bear spray, make noise as you walk, and avoid hiking alone, especially in the forested lower section.
This guide is part of the Japan's 100 Famous Mountains: Complete Hyakumeizan Guide series.
