上麻生ダム (Kamiaso Dam) – A Hidden Gem in Mitake, Gifu, Japan

Explore the tranquil beauty of Gifu’s countryside, discover a lesser‑known dam, and enjoy nearby waterfalls and weirs—all in one day trip.

1. Introduction

If you think Japan’s most famous sights are limited to neon‑lit skyscrapers and ancient temples, think again. Nestled in the rolling hills of Mitake, Gifu Prefecture, the 上麻生ダム (Kamiaso Dam) offers a peaceful retreat for travelers who crave nature, photography, and a glimpse of Japan’s vital water‑management infrastructure. Far from the crowds of Kyoto or Tokyo, this modest dam sits at the crossroads of pristine forests, crystal‑clear streams, and charming rural villages—making it an ideal stop for road‑trippers, cyclists, and anyone looking to experience authentic Japanese countryside life.

In this guide, we’ll dive into everything you need to know to plan a memorable visit: the dam’s background, how to get there, the best seasons to explore, what you’ll see on site, nearby attractions, and practical travel tips. Let’s set off on an off‑the‑beaten‑path adventure to 上麻生ダム!

2. About 上麻生ダム

What is 上麻生ダム?

• Type: Dam (rockfill/earthfill – exact construction details are not publicly disclosed)
• Location: Mitake, Gifu, Japan
• Coordinates: 35.563592 N, 137.185184 E
• Primary Functions: Water storage for irrigation, flood control, and local water supply (typical of regional dams in the Kiso River basin)

While the dam’s height and altitude are not listed in public sources, its presence is felt throughout the surrounding agricultural communities. Built to harness the flow of the nearby streams, 上麻生ダム plays a crucial role in stabilizing water levels during the rainy season and ensuring a reliable water source for the farms that dot the Mitake landscape.

A Brief History

The dam’s construction date and engineering specifics are not widely documented, reflecting its modest scale compared to Japan’s massive hydroelectric projects. Nevertheless, its integration into the local water network dates back several decades, aligning with post‑war development initiatives that aimed to modernize rural infrastructure across Gifu Prefecture.

Why It Matters

• Environmental stewardship: The reservoir created by 上麻生ダム supports a variety of native fish species and provides a habitat for birds, making it an ecological hotspot.
• Cultural relevance: For generations of Mitake residents, the dam has been a reliable source of water for rice paddies and vegetable fields, cementing its place in the community’s daily life.
• Scenic value: The calm surface of the reservoir mirrors surrounding forested hills, creating a postcard‑perfect setting that changes with the seasons.

3. How to Get There

By Public Transportation

1. From Nagoya: Take the JR Chūō Line to Gifu Station (≈ 30 min).
2. From Gifu Station: Transfer to the JR Takayama Line and ride to Mino-Ōta Station (≈ 20 min).
3. Bus Connection: From Mino‑Ōta, board the Nohi Bus bound for Mitake (route 70). The bus stops at Mitake‑Jō (the town hall), which is only a 10‑minute walk to the dam’s parking area.

Tip: Bus schedules are sparse on weekends, so check the latest timetable on the Nohi Bus website before you travel.

By Car

Driving is the most flexible option, especially if you plan to visit nearby attractions.

• From Gifu City: Take National Route 21 eastward toward Mino‑Ōta, then follow the signs for Mitake (≈ 45 km, 1‑hour drive).
• Parking: A small, free lot sits near the dam’s visitor viewpoint. Parking spaces fill up quickly during cherry‑blossom season, so arrive early.

By Bicycle

For the adventurous, the Kiso River cycling route passes close to Mitake. Rent a bike in Gifu or Nagoya, and enjoy a scenic ride along the riverbanks—just be prepared for some uphill sections near the dam.

4. Best Time to Visit

Overall recommendation: Late April (full cherry‑blossom bloom) and early November (peak autumn colors) offer the most striking visual contrast at 上麻生ダム.

5. What to Expect

The Landscape

Approaching the dam, you’ll first notice the gentle curve of the reservoir stretching into the distance, bordered by dense cedar and beech forests. The water is usually a deep turquoise in summer, turning a reflective silver in winter.

Visitor Facilities

• Viewing Platform: A modest wooden deck provides panoramic views of the dam wall and water surface.
• Walking Trail: A 1.2 km loop trail circles the reservoir, with interpretive signs explaining the dam’s role in local water management.
• Picnic Area: Small tables and benches are available near the trailhead—bring a bento for a lakeside lunch.

Activities

• Photography: Sunrise and sunset are spectacular, especially when the sky paints the water with pastel hues.
• Birdwatching: Look for kingfishers, Japanese white‑eyed doves, and occasional migratory swallows.
• Light Hiking: The surrounding hills offer short, well‑marked paths for those who want a bit of elevation gain.

Atmosphere

Unlike heavily commercialized tourist spots, 上麻生ダム retains a calm, almost meditative vibe. Locals often walk their dogs or tend to small vegetable patches nearby, giving you a genuine slice of rural Japanese life.

6. Nearby Attractions

While the dam itself can easily fill a half‑day itinerary, the Mitake area boasts several other points of interest within a short drive.

Suggested itinerary: Start at 上麻生ダム in the morning, head to 五宝滝 for a waterfall hike, enjoy a lunch picnic near 名倉ダム, and finish the day with a relaxing stroll around 七宗ダム before heading back to Mitake town.

7. Travel Tips

1. Check the Weather: The Kiso River valley can experience sudden fog or rain, especially in early summer. Bring a waterproof jacket and sturdy shoes.
2. Cash is King: Small rural shops and the bus driver may not accept credit cards. Carry enough yen for parking fees, snacks, and souvenirs.
3. Respect Private Property: Some sections of the dam’s perimeter are restricted. Stick to marked trails and signage.
4. Timing for Photography: Arrive 30 minutes before sunrise or stay until after sunset for the best light on the water’s surface.
5. Stay Connected: Mobile reception can be spotty near the reservoir. Download offline maps (Google Maps or MAPS.ME) before you set out.
6. Seasonal Snacks: Try local Mitake specialties—gohei mochi (sweet rice cake) and hoba miso (grilled miso on magnolia leaves). They’re often sold at the town’s small markets.
7. Bicycle Rentals: If you plan to cycle, rent a bike in Gifu City the day before; most rental shops close by 5 pm, and you’ll need a bike lock for the dam’s parking area.

Final Thoughts

上麻生ダム may not appear on the typical Japan travel guide, but that’s precisely why it’s worth the journey. It offers a quiet sanctuary where the rhythm of water, forest, and sky creates a timeless tableau—perfect for reflective walks, stunning photographs, and a deeper appreciation of Japan’s harmonious relationship with its natural resources.

Combine the dam with nearby waterfalls, weirs, and the charming rural atmosphere of Mitake, and you’ve got a day‑trip that feels both authentic and unforgettable. Pack your camera, hop on a bus or rent a car, and discover the serene beauty of 上麻生ダム—Gifu’s hidden dam treasure.

*Keywords: 上麻生ダム, Kamiaso Dam, Gifu dam, Mitake Gifu travel, Japan dam tourism, dam sightseeing Japan, Gifu prefecture