
Guide
Komadome Shitsugen
8 min readOverview & Charm
Komadome Shitsugen is a high-altitude bog located at an altitude of 1,100m, spanning the villages of Showa in Onuma District and Minamiaizu Town in Minamiaizu District, Fukushima Prefecture. Designated as a National Natural Monument, its high academic value has also earned it a spot in the "Fukushima Green 100 Views." The area consists of three main wetlands: Oyachi, Shirakaba-yachi, and Mizunashi-yachi, characterized by a vast, sweeping landscape surrounded by majestic beech forests. Although the environment is harsh—with snow depths reaching 3 to 4 meters in winter—this results in an incredibly rich and diverse display of plant life and colors throughout the warmer seasons.
History & Cultural Background
This wetland was officially designated as a National Natural Monument on December 28, 1970, due to its unique plant communities. The area is academically significant for its transitional vegetation, moving from low-altitude to high-altitude bog ecosystems. The unique ecosystem, formed over countless years within the specialized environment of the 1,100m-altitude beech forest, remains a protected and precious natural treasure.

Main Highlights
The scenery of Komadome Shitsugen changes dramatically depending on when you visit. Key botanical highlights include Skunk Cabbage (Mizubasho) and Marsh Marigold in the spring; Eriophorum (Cotton Grass) and Nikko-kisuge (Daylily) in the summer; and the stunning autumn colors of the beech forest and grasses. In autumn, the 360-degree panorama of colorful foliage from beech trees, maples, and sumac creates an unforgettable spectacle. You can also observe the unique fruiting stages of plants like Aleutian avens and mountain ash.
Seasonal Recommendations
The changing flora is the greatest draw of this location:
- *Spring**: Starting with melting snow and fresh green beech leaves, the wetlands are adorned with Skunk Cabbage, Marsh Marigold, and other spring blossoms.
- *Summer**: The landscape turns into a white carpet of Eriophorum (Cotton Grass), accompanied by blooms of Iris and Nikko-kisuge.
- *Autumn**: The forest turns into a sea of color with turning beech and maple leaves, alongside the vibrant colors of the wetland grasses.
- *Best Time of Day**: As this is a natural park, walking during bright daylight hours is highly recommended for the best visibility.

Activities & Experiences
You can enjoy botanical observation while walking along well-maintained boardwalks. Near the Oyachi area, the "Bunakko Trail" allows visitors to experience the natural landscape up close. For a deeper understanding, certified guides are available (Advance reservation required; fee starts from 5,000 JPY per group).
Surrounding Area
Several scenic spots are located near Komadome Shitsugen. Komadome Pass (Komadome Toge), located about 2km south, offers a great vantage point to understand the local geography. Other nearby points of interest include the Miyokoshi Wetland and the Hosoi Family Museum, which showcases local history.
Essentials: Clothing, Payment & Manners
- *Clothing**: Since the altitude is 1,100m, please bring clothing appropriate for the season. Even in summer, wear sturdy walking shoes suitable for nature trails.
- *Payment**: Local transactions are primarily handled with cash or transit IC cards (please confirm details on-site).
- *English Support**: English signage availability may vary; please check local conditions.
- *Reservations**: If you wish to use a certified guide, advance booking is mandatory.
- *Photography**: Photography of the landscape is permitted, but please follow etiquette to avoid damaging the delicate plants.
- *Important Note**: The Oyachi area has specific one-way walking paths; please follow the provided course maps.