Complete Guide to Mountain Spring Water in Akita Prefecture: From Japan’s Top 100 Waters to Hidden Water Sources
Akita Prefecture is blessed with abundant nature, featuring mountainous areas with renowned peaks such as Shirakami Mountains, Mt. Chokai, and Mt. Kurikoma. The clear spring water flowing from these mountains has long supported the lives of local residents and has become an object of faith. This article provides detailed information about mountain spring water in Akita Prefecture, from famous springs selected for Japan’s Top 100 Waters to hidden water sources known only to locals.
Characteristics and Geological Background of Spring Water in Akita Prefecture
Spring water in Akita Prefecture has unique characteristics resulting from its rich volcanic topography and heavy snowfall.
Blessings from Volcanic Geology
Akita Prefecture is home to volcanoes such as Mt. Chokai, Mt. Akitakomagake, and Mt. Kurikoma, and their volcanic geology significantly influences the water quality of spring water. Water that passes through volcanic ash and lava layers becomes rich in minerals while impurities are naturally filtered away, resulting in clear and crisp water.
In particular, spring water at the foot of Mt. Chokai is known to become soft water with balanced minerals including calcium and magnesium as it passes through volcanic basalt layers.
Abundant Snowfall and Forests Provide Water Volume
Akita Prefecture is one of Japan’s heaviest snowfall regions, with snow accumulated in winter gradually melting from spring through summer, becoming a stable water source. Additionally, broadleaf forests centered on beech trees, such as those in the Shirakami Mountains, function as a “green dam,” slowly infiltrating rainwater and snowmelt into the ground.
Through this natural system, mountain spring water in Akita Prefecture maintains stable water volume year-round, with the characteristic of rarely drying up even during dry periods.
Japan’s Top 100 Waters Selected from Akita Prefecture
The Ministry of the Environment’s “Japan’s Top 100 Waters” has designated two locations from Akita Prefecture.
Chikara-mizu (Power Water) – Nikaho City
Location: Akita Prefecture, Nikaho City, Shogutsuka Town, Kotaki
Located at the northern foot of Mt. Chokai, Chikara-mizu was designated as one of Japan’s Top 100 Waters by the Ministry of the Environment in 1985, representing Akita Prefecture. This water, which springs from approximately 200 meters elevation, is rain and snow that fell on Mt. Chokai, filtered naturally through the ground over many years.
Water Quality Characteristics
Chikara-mizu is soft water with hardness of 30-40 mg/L, showing a pH value of 6.5-7.0 indicating weakly acidic to neutral. The water temperature remains stable at approximately 10 degrees Celsius year-round, feeling cold in summer and warm in winter. While containing balanced minerals, it is characterized by a smooth and easy-to-drink taste.
Access and Usage
- Approximately 15 minutes by car from JR Shogutsuka Station
- Free parking available (approximately 20 spaces)
- Water collection area is established and collection is freely permitted
- Bringing one’s own poly tanks or plastic bottles is recommended
Locally, there is a tradition saying “drink this water and energy wells up.” Many mountaineers and tourists visit. The area also has Mt. Chokai trailheads nearby and is popular as a stop-by spot before and after climbing.
Rokugou Spring Water Group – Misato Town
Location: Akita Prefecture, Senboku District, Misato Town, Rokugou District
The Rokugou Spring Water Group is a collective term for multiple springs flowing from the Mahiru Mountains of the Ou Mountain Range, designated as one of Japan’s Top 100 Waters in 1985. The town has over 60 spring water points and is known as a “Land of Spring Water.”
Main Spring Water Spots
- Niteko Shimizu (Niteko Clear Water): The most famous spring in the Rokugou group, with approximately 5,000 tons of water gushing forth daily.
- Odaidokoro Shimizu (Imperial Kitchen Clear Water): Reportedly used as drinking water for Satake clan lords, this is a prestigious spring water.
- Suwa Shimizu (Suwa Clear Water): Spring water within the grounds of Suwa Shrine, cherished by locals as sacred water.
Water Quality Characteristics
Water from the Rokugou Spring Water Group is soft water with hardness of 40-60 mg/L, with excellent balance between calcium and magnesium. Water temperature remains stable at 12-14 degrees Celsius year-round. In addition to drinking, it is used for tofu-making and sake brewing.
Access and Tour Routes
- Within walking distance of JR Iizume Station to multiple spring water points
- “Spring Water Map” available at Misato Town Tourist Information Center
- Bicycle touring recommended (approximately 2-3 hour course)
- Explanation signs installed at each spring water point
The town hosts a “Famous Water Festival” every July with various events utilizing spring water.
Mountain Spring Water Around the Shirakami Mountains
The Shirakami Mountains, registered as a World Natural Heritage Site, and surrounding areas contain numerous clear springs nurtured by primordial beech forests.
Spring Water in Gakudai Natural Observation Forest – Fujisato Town
Location: Akita Prefecture, Yamamoto District, Fujisato Town
Located in the Akita side of the Shirakami Mountains, Gakudai Natural Observation Forest is home to giant beech trees over 300 years old and abundant spring water nurtured by these forests.
Characteristics
Beech forest soil has high water retention capacity, absorbing fallen rain like a sponge and slowly infiltrating it underground. During this process, water is naturally filtered, becoming highly pure water. Even in summer, the water temperature remains below 10 degrees Celsius, with extremely high transparency.
Access
- Approximately 40 minutes by car from Fujisato town center
- Forest roads open from early June to late October (closed in winter)
- Approximately 30 minutes walk from parking area to observation forest
- Hiking boots or trekking shoes recommended
Kasuge River Source Spring Water – Happo Town
Location: Akita Prefecture, Yamamoto District, Happo Town
The upper stream area of the Kasuge River, originating from the northern Shirakami Mountains, has multiple spring water points. Located far from populated areas, untouched nature is preserved.
Characteristics
- Water Quality: Ultra-soft water (hardness 10-20 mg/L)
- Water Temperature: 8-10 degrees Celsius year-round
- pH: 6.0-6.5 weakly acidic
This spring water is considered one of the purest waters nurtured by Shirakami beech forests. While low in minerals, it is characterized by a smooth taste with sweetness.
Access
Access to the Kasuge River source area is limited and requires proper mountaineering equipment and experience. Solitary entry is not recommended; touring with a local guide is strongly recommended.
Spring Water Groups at the Foot of Mt. Chokai
Mt. Chokai (elevation 2,236m), located on the border of Akita and Yamagata prefectures and also called “Dewa Fuji,” is a representative peak of the Tohoku region. Abundant spring water is scattered at the base of the mountain on the Akita side.
Mototaki Underground Flow Water – Nikaho City
Location: Akita Prefecture, Nikaho City, Shogutsuka Town, Sekimototaki
Mototaki Underground Flow Water is a rare form of spring water where Mt. Chokai’s underground water gushes out from an entire rocky cliff face approximately 30 meters wide, creating a waterfall-like flow. Selected as one of “Japan’s Top 100 Waterfalls,” the sight is spectacular.
Water Quality and Volume
- Daily Outflow: Approximately 50,000 tons
- Water Temperature: Approximately 10 degrees Celsius year-round
- Hardness: 30-40 mg/L soft water
- Characteristic: Contains almost no iron, completely transparent
Rain and snow that fell on Mt. Chokai flow underground and gush out from gaps in lava layers. The water volume is extremely abundant, never decreasing even in midsummer.
Access and Tourism Information
- Approximately 20 minutes by car from JR Shogutsuka Station
- Approximately 10 minutes walk from parking area to spring water (walking trail established)
- Surrounding moss-covered rocks are beautiful, popular as a photography spot
- Drinkable but boiling is recommended as a precaution
Maruike-sama (Round Pond) – Nikaho City
Location: Akita Prefecture, Nikaho City, Shogutsuka Town, Kotaki
Maruike-sama is a circular pond approximately 20 meters in diameter and 5 meters deep, formed by underground water from Mt. Chokai. The mystical emerald-green surface has been an object of faith since ancient times.
Water Quality Characteristics
The pond water has remarkably high transparency, allowing clear view of the bottom. Water temperature remains stable at approximately 10 degrees Celsius year-round and never freezes even in winter. This constant temperature nurtures a unique ecosystem.
Access and Precautions
- Located approximately 5 minutes walk from Chikara-mizu
- Considered a sacred place; utmost care needed regarding entry and water collection
- Can be viewed from surrounding walking trails
- Most beautiful during early morning when light is present
Shishigahana Wetland Spring Water – Nikaho City
Location: Akita Prefecture, Nikaho City, Shogutsuka Town, Yokooka
Located at approximately 500 meters elevation at the northern foot of Mt. Chokai, Shishigahana Wetland has multiple spring water points. The landscape woven together by wetland-specific vegetation and clear spring water enchants visitors.
Main Spring Water Points
- Detsubo: The spring water point with the most abundant volume in the wetland, observable gushing energetically while churning up sand.
- Chokai Marimo: Ball-shaped algae living in spring water, designated as a National Natural Monument.
Access
- Approximately 30 minutes by car from Nikaho city center
- Approximately 10 minutes walk from parking area to wetland entrance
- Wooden paths are established in the wetland (approximately 1-hour course)
- Wellington boots or trekking shoes recommended
Spring Water Around Mt. Kurikoma
Mt. Kurikoma (elevation 1,626m), located at the border of Akita, Miyagi, and Iwate prefectures, has valuable spring water on the Akita side.
Spring Water Near Oyasukyo – Yuzawa City
Location: Akita Prefecture, Yuzawa City, Minase
Located at the eastern foot of Mt. Kurikoma, Oyasukyo is a scenic area characterized by a deep V-shaped valley, with multiple spring water points at the valley bottom.
Water Quality Characteristics
The Oyasukyo area is geothermally active, but the spring water contains almost no hot spring components. Due to volcanic gas influence, the water may show slight acidity, but maintains water quality suitable for drinking.
Access
- Approximately 40 minutes by car from Yuzawa city center
- Parking available near Oyasukyo Daifuntou
- Descent to valley bottom by stairs (round trip approximately 30 minutes)
Spring Water Around Mt. Akitakomagake
Mt. Akitakomagake (elevation 1,637m) is a volcano located at the border of Akita and Iwate prefectures, with high-quality spring water scattered at its Akita-side base.
Spring Water in Tazawa Lake Plateau – Senboku City
Location: Akita Prefecture, Senboku City, Tazawako Obonai
The Tazawa Lake Plateau at the western foot of Mt. Akitakomagake has multiple spring water points. Combined with the clean air of the plateau, the water has a very refreshing taste.
Water Quality Characteristics
- Hardness: 40-50 mg/L soft water
- Water Temperature: 8-12 degrees Celsius year-round
- pH: 6.5-7.0 weakly acidic to neutral
Water that has passed through volcanic geology contains balanced minerals and is characterized by a smooth taste.
Access
- Approximately 20 minutes by car from Tazawa Lake Station
- Multiple spring water points near Tazawa Lake Plateau Hot Spring Resort
- Some are located on hot spring facility grounds and collection is only permitted for facility users
Hidden Spring Water Spots Known Only to Locals
Numerous uncommercialized spring water spots known only to locals exist throughout Akita Prefecture.
Spring Water at the Foot of Mt. Moriiyoshi – Kita-Akita City
Location: Akita Prefecture, Kita-Akita City, Moriiyoshi
Spring water used by locals since ancient times is scattered around the base of Mt. Moriiyoshi (elevation 1,454m). Uncommercialized, water collection is possible in a quiet environment.
Characteristics
Mt. Moriiyoshi is also known as one of “100 Famous Flower Mountains,” and the spring water nurtured by its abundant vegetation is said to be extremely pure. Locally known as “Moriiyoshi water,” it is daily used as drinking water.
Access
Specific locations are best learned from locals. The Kita-Akita City Tourist Information Office can provide information.
Spring Water at the Foot of Mt. Taihei – Akita City
Location: Akita Prefecture, Akita City, Kawabe District
Located east of Akita city, Mt. Taihei (elevation 1,170m) has several spring water points at its base. With good access from the city center, locals regularly visit for water collection.
Water Quality Characteristics
- Hardness: 30-40 mg/L soft water
- Water Temperature: 10-12 degrees Celsius year-round
- Characteristic: No peculiar taste, easy to drink
Access
- Approximately 30 minutes by car from Akita city center
- Simple water collection areas are established at some spring water points
Spring Water Collection and Storage Methods
Methods for safely collecting mountain spring water and preserving its freshness are introduced.
Precautions During Collection
- Container Preparation
- Use clean poly tanks or plastic bottles
- Pre-sterilize by boiling or food-grade alcohol
- Containers with wide openings are easier to fill
- Collection Method
- Hold container directly under spring opening for collection
- Use initial water to rinse the container
- Fill to capacity without air pockets
- Tightly seal cap
- Hygiene Management
- Do not soil spring openings or surroundings
- Take all used equipment home
- Show consideration to other users
Storage Methods and Shelf Life
Refrigerated Storage
- Storage Temperature: 4-10 degrees Celsius (refrigerator)
- Shelf Life: Approximately 3-5 days
- Use within 2-3 days after opening
Room Temperature Storage
- Store in cool location away from direct sunlight
- Shelf Life: Approximately 1-2 days
- Avoid room temperature storage in summer
Long-term Storage
- Boil before storage for approximately 1 week preservation
- Note: Boiling changes the taste
- Freezing is not recommended (flavor deteriorates)
Water Quality Testing
Regular water quality testing is recommended if consuming spring water daily.
Test Items
- General Bacteria
- Coliform Bacteria
- pH Value
- Hardness
- Metal Ions (Iron, Manganese, etc.)
- Nitrate Nitrogen, Nitrite Nitrogen
Testing can be requested at health departments or private water quality testing institutions within Akita Prefecture. Costs vary by test item, with basic drinking water testing ranging from approximately ¥5,000-¥15,000.
Food Culture in Akita Utilizing Spring Water
A unique food culture utilizing clear spring water has developed in Akita Prefecture.
Regional Dishes Using Spring Water
Kiritanpo Hot Pot
This signature dish of northern Akita requires rice cooked in high-quality water. Rice cooked in spring water increases sweetness, enhancing the kiritanpo flavor.
Tofu Making
Tofu-making using spring water is popular in towns like Misato. The soft water of spring water pairs well with soy protein, creating smooth and slightly sweet tofu.
Sake Brewing Water
Akita Prefecture is renowned for sake production, with many breweries using spring water as brewing water. Akita sake brewed with soft water is characterized by mellow and delicate flavor.
Specialty Products Using Spring Water
Spring Water Coffee
Some cafes serve coffee made with spring water. The soft water of spring water enhances coffee flavor, resulting in smooth and aromatic coffee.
Spring Water Soba
Soba flour mixed with spring water and boiled in spring water highlights soba’s original flavor. Restaurants in towns like Misato and Senboku serve spring water soba.
Spring Water and Environmental Conservation
Environmental conservation efforts are essential for preserving clear spring water for the future.
Importance of Forest Conservation
Forest conservation, particularly beech forests that serve as water sources for spring water, is critically important. Beech forests function as a “green dam,” slowly infiltrating rainwater into the ground and maintaining stable water volume.
Initiated by the Shirakami Mountains’ World Natural Heritage designation, Akita Prefecture has activated beech forest conservation activities. Participation in forest volunteer work and tree planting contributes to spring water conservation.
Water Source Protection
The following considerations are necessary around spring water source areas:
- Strict litter removal and disposal
- Prohibition of detergent and chemical use
- Prohibition of plant and animal collection
- Restricted access to non-designated areas
Coexistence with Local Residents
Many springs are precious resources long utilized by local residents for daily water needs. As tourists, observe the following etiquette:
- Prioritize local resident use
- Refrain from large-scale water collection
- Do not soil spring water openings
- Exercise parking consideration
- Avoid early morning or late night visits
Enjoying Spring Water Through the Four Seasons
Akita Prefecture’s mountain spring water presents different appearances with each season.
Spring (March-May)
Snowmelt season brings the most abundant spring water volume. Snow accumulated over winter melts at once, increasing spring water vigor.
- Water volume abundant with powerful sound
- Can be enjoyed alongside spring vegetable foraging
- Cold-resistant clothing necessary where snow remains
Summer (June-August)
Summer is when spring water’s coldness feels most pleasant. Even on hot days, spring water maintains approximately 10-degree coldness.
- Cold spring water refreshes overheated body
- Dense surrounding greenery allows forest bathing
- Insect repellent necessary
Autumn (September-November)
Autumn foliage season offers the most beautiful spring water scenery. The contrast between colored leaves and clear water is striking.
- Combination of autumn foliage and spring water beautiful
- Temperature decline provides ideal water collection climate
- Can be enjoyed alongside mushroom foraging
Winter (December-February)
Winter makes most spring water locations difficult to access, but some remain visitable.
- Mystical sight of unfrozen spring water
- Beautiful ice formations and frost-covered trees nearby
- Many roads seasonally closed; advance confirmation essential
- Cold-resistant clothing and winter tires mandatory
Model Courses for Spring Water Tours
Recommended model courses for efficiently visiting Akita’s spring water sites.
Nikaho City / Mt. Chokai Base One-Day Course
Duration: Approximately 6 hours
- Chikara-mizu (9:00-9:30)
- Water collection and surrounding exploration
- Maruike-sama (9:35-10:00)
- Appreciate mystical pond
- Mototaki Underground Flow Water (10:30-11:30)
- Walking trail exploration and spring water appreciation
- Lunch (11:45-13:00)
- Local cuisine in Nikaho City
- Shishigahana Wetland (13:30-15:30)
- Wooden path walking and spring water appreciation
- Michi-no-Eki Shogutsuka (16:00-)
- Souvenir shopping
Misato Town / Rokugou Spring Water Group Half-Day Course
Duration: Approximately 3 hours
- Misato Town Tourist Information Center (10:00-10:15)
- Obtain spring water map, rent bicycle
- Niteko Shimizu (10:20-10:40)
- Most abundant volume spring water
- Odaidokoro Shimizu (10:50-11:10)
- Historic spring water
- Suwa Shimizu (11:20-11:40)
- Shrine grounds spring water
- Youutarou (12:00-12:30)
- Lunch featuring spring water cuisine
- Additional Spring Water Tours (12:40-13:00)
- Visit additional spring water points as time permits
Legends and Beliefs Related to Spring Water
Various legends and beliefs have connected to Akita’s spring water since ancient times.
Legend of Chikara-mizu
The Nikaho spring water Chikara-mizu has a tradition stating “drinking this water brings forth energy.” Stories remain of mountain ascetics climbing Mt. Chokai drinking this water to build strength.
Faith of Maruike-sama
Maruike-sama has long been an object of worship as a sacred place where the spirit of Mt. Chokai resides. The pond water was treated as sacred water, with eras when collection was forbidden as taboo. Presently, locals continue protecting this pond with reverence.
Rokugou Spring Water Group and Satake Clan
Among Misato Town’s Rokugou spring water group, Odaidokoro Shimizu has a prestigious history of being used as drinking water for Satake clan lords. It is said that the existence of this spring water became a factor in the Satake clan’s regard for the Rokugou area after their transfer to Akita.
Scientific Research on Spring Water
Akita’s spring water serves as a valuable research subject for academic study.
Long-term Water Quality Monitoring
Akita Prefecture and various municipalities regularly survey water quality of major springs. This allows understanding of water quality changes over time and environmental impacts.
Recent surveys confirm stable water quality at most springs, though some areas show slight upward trends in nitrate nitrogen concentration. This is thought caused by fertilizer component runoff from farmland, with countermeasures being considered.
Spring Water Origin Research
Latest techniques such as isotope analysis are advancing research into spring water origins and residence time. This clarifies how many years from precipitation to spring discharge and what pathways water takes.
For example, some Mt. Chokai base spring water takes over 10 years from precipitation to emergence. This shows that slow underground flow undergoes natural filtration, becoming highly pure water.
Ecosystem Research
Unique ecosystems form around spring water and surrounding areas. In particular, Chokai Marimo in Shishigahana Wetland requires cold, clear spring water to exist, being a precious organism.
Through such biological research, scientific backing supports the importance of spring water environment conservation.
Spring Water Visit Packing Checklist
Essential items for enjoying spring water tours comfortably.
Essential Items
- Water Collection Containers: Poly tanks (5-10L) or plastic bottles
- Towels: For wiping hands and containers
- Maps or Smartphones: GPS app usage recommended
- Drinking Water: For hydration during movement
- Rain Gear: Mountain weather changes quickly
- Insect Repellent: Especially important in summer
Convenient Items
- Cooler Box: To keep collected water cold during return
- Wellington Boots or Trekking Shoes: For wetland or mountain path hiking
- Gloves: When handling cold water
- Camera: For recording beautiful scenery
- Folding Chair: For leisurely time around spring water
- Portable Water Purifier: As backup
Seasonal Additional Items
Spring and Autumn
- Cold-resistant clothing (fleece or windbreaker)
- Hat
Summer
- Sunscreen
- Hat (for sun protection)
- Change of clothes (if sweating)
Winter
- Cold-resistant clothing (down jacket, etc.)
- Gloves (waterproof)
- Winter shoes (with non-slip soles)
- Snowshoes or crampons (snowy regions)
Conclusion: The Appeal of Mountain Spring Water in Akita Prefecture
The clear water flowing from Akita’s mountains is a precious resource nurtured by abundant natural environment and long history. From Chikara-mizu and Rokugou Spring Water Group selected as Japan’s Top 100 Waters to spring water spots scattered across Mt. Chokai base, Shirakami Mountains surroundings, and Mt. Kurikoma area, individually charming locations exist throughout the prefecture.
These springs serve not merely as water sources but support regional food culture, serve as objects of faith, and play important roles as tourism resources. Scientifically too, their value is recognized as valuable research subjects.
When visiting spring water, environmental conservation and etiquette are important. Litter removal, local resident consideration, and water source protection—individual commitment leads to preserving clear spring water for the future.
Akita’s mountain spring water, presenting different appearances through the four seasons. Touching this clear water, enjoying beautiful natural scenery, and experiencing regional history and culture will surely refresh both body and mind. Please definitely visit Akita’s mountain spring water and experience its appeal.
