Kinshuko Lake and Waga Sennin Gorge: Hidden Autumn Foliage Gems in Iwate

Just as its name suggests, the mountains surrounding the lake are dyed in a blazing brocade — Kinshuko Lake in Nishiwaga Town is one of Tohoku's leading destinations for autumn foliage. The scenic beauty woven by this artificial lake, created by the Yuda Dam, and the adjacent Waga Sennin Gorge takes on reds, yellows and oranges in autumn, making it a painting drawn by nature itself. The foliage reflected on the mirror-like surface of the lake is also magnificent, captivating everyone who visits.

What Kinshuko Lake Is

Kinshuko Lake is an artificial lake formed by the Yuda Dam, which dams the Waga River. True to the name "kinshu" (autumn brocade), in autumn the trees on the mountains surrounding the lake change colour all at once and the slopes are covered in foliage so beautiful it is called a "carpet of brocade." The sight of the mountains' autumn colours reflected on the calm water is exceptional, and the lake is known as one of Tohoku's finest autumn viewpoints. You can enjoy the shifting foliage scenery while driving around the shore.

The Gorge Scenery of Waga Sennin Gorge

Waga Sennin Gorge, adjacent to Kinshuko Lake, is a deep ravine carved out by the Waga River. The gorge scenery woven by sheer rock faces, clear streams and trees dyed in many colours overwhelms the viewer. In autumn the whole gorge is wrapped in foliage, and you can take in the contrast between nature's powerful forms and its colours. Being able to enjoy two different kinds of autumn landscape — lake and gorge — in one place is the appeal of this area.

Highlights

• Kinshuko Autumn Foliage: Late October to early November — the lake surface is coloured with beautiful reflected foliage
• Waga Sennin Gorge: Gorge with continuing cliffs and mountain streams
• Sightseeing Boats (Autumn Season): Boats may operate during foliage season (confirm in advance)
• Yuda Onsen Valley: Hot spring area around Kinshuko Lake

Enjoying the Surroundings

Nishiwaga Town is a place blessed with the nature and hot springs that only a heavy-snow region can offer. Soaking at leisure in Yukawa Onsen or one of the other hot springs around Kinshuko Lake, and tasting local flavours such as mountain vegetables and soba, you can enjoy autumn in the Ou highlands to the full alongside your foliage viewing. The season of fresh green, and the deep-snow scenery of winter, are equally special.

Nearby Hot Springs

• Yuda Onsen Village: Hot spring cluster around Kinshuko Lake
• Nishiwaga Town Ryokan: Accommodation combining foliage viewing and hot springs

The Yuda Dam and the Name "Kinshuko"

The Yuda Dam that created Kinshuko Lake is a gravity arch dam completed in 1966 (Showa 41). According to the Nishiwaga Town Tourism Association its height is 89.5 metres, and it took some eleven long years from the start of construction to completion. With the dam's completion, the deep valley of the Waga River was transformed into a long, narrow lake. The name "Kinshuko" derives from the way the surrounding mountains are dyed like brocade in autumn — the lake itself carries the beauty of the season in its name.

Near the dam site is the "Kinshuko Monoshiri-kan," where pamphlets and panels on the history of the Yuda Dam's construction and on the nature and culture of the Kinshuko area and its river basin are displayed. Rather than simply looking at the view, if you learn how this lake came into being and then look across to the far shore, you should be able to sense the depth of the valley submerged beneath the water, and even the process by which an artificial landscape — a dam lake — has settled into nature over a long span of time.

The "Kinshuko Great Falls," Which Appear Only in Summer

Kinshuko Lake has a face entirely different from its autumn foliage: the "Kinshuko Great Falls" (the Yuda sediment-storage dam). According to the Tohoku Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, from July to late September, when the water level of the dam drops, the water falling from the sediment-storage dam within the lake spreads out like a curtain and appears as a broad waterfall.

What is especially notable is that you can walk through behind this waterfall. The film of water falling before your eyes, the fine spray clinging to your face, and the low, heavy sound of water echoing in the narrow space — it is an experience rare even nationwide, in which you feel the waterfall not only with your eyes but with your skin and ears. At night the "Kinshuko Great Falls Illumination" is held, and in 2020 it was certified as a Japan Night View Heritage site. Around late July, the "Kinshuko Great Falls Summer LIGHT Festival" is also held, adding seven-colour illumination together with free experiences such as walking behind the falls, fishing and log-splitting.

At the iris garden of the adjacent Kinshuko Kawajiri General Park, more than 30 varieties and around 120,000 irises come into bloom from early to mid-July. If you visit in summer, touring the waterfall and the irises together is recommended.

The Face of Each Season

Spring: In this heavy-snow region the thaw comes late, and just as the remaining snow draws white streaks across the mountainsides, fresh green begins to bud in the foothills. It is a spring landscape unique to this land, where white and young green coexist.

Summer: The lakeshore covered in deep green, and the Kinshuko Great Falls described above. The way the falling water level reveals shoreline terrain normally hidden from view is another sight unique to this season. Cherry salmon, yamame trout and other fish live in the lake, and anglers can be seen there.

Autumn: Mid-October to early November is the peak for autumn colours. Known foliage spots include the stretch along National Route 107, the area around the Kinshuko Great Falls (the Yuda sediment-storage dam), and the area around Makibuchi on the Waga River.

Winter: Nishiwaga is one of the snowiest places even in Tohoku. Lake and surrounding mountains alike sink beneath the snow, wrapped in a silence that seems to have absorbed every sound.

Photography Tips and Places to Stop

If you want to capture the foliage reflected on the lake, early morning when the wind is light is the time to aim for. If the wind picks up during the day the surface ripples and the mirror-like reflection is lost. On mornings with mist, the mountain ridgelines appear layered one behind another, making for an image with depth.

Another subject unique to this area is the railway. The JR Kitakami Line runs along Kinshuko Lake, including sections that cross the water. The Nishiwaga Town Tourism Association notes that "the seasonal scenery and the Kitakami Line trains crossing the lake make for a beautiful sight," and compositions combining foliage and a train are a classic here. Services are not frequent, however, so check the timetable before heading to your shooting point.

After foliage viewing, warming your chilled body at one of the local hot springs, beginning with Yukawa Onsen, is recommended. The roadside station "Kinshuko" on National Route 107 is convenient as a base for rest and parking.

Best Season and Access

The peak of the autumn colours is from mid to late October, and this period, when the colours are most vivid, is the best season. For access, the area around "Hot Yuda Station" on the JR Kitakami Line serves as a base, and travelling to the lakeshore by car is convenient. A drive from Kitakami City or the Yokote direction is also recommended. It is chilly in the mountains, so enjoy the foliage in warm clothing.

Practical Information

• Best season: The foliage is usually at its best from mid-October to early November. The colours along National Route 107, around the Kinshuko Great Falls (the Yuda sediment-storage dam) and around Makibuchi on the Waga River are well known.
• Fees: Walking and driving around the lakeshore is free.
• Access: The JR Kitakami Line and National Route 107 both run along Kinshuko Lake, so the foliage can be enjoyed from the train window as well as by car. Getting around the lakeshore is easiest by car. Alight at JR Kitakami Line Hot Yuda Station (about 1 hour from Kitakami), or it is about 20 minutes by car from the Yuda IC on the Akita Expressway.
• Parking: The roadside station "Kinshuko" on National Route 107 can be used as a base for rest and parking.
• Clothing and gear: Mornings and evenings are sharply cold in the mountains, and warm clothing is needed from late October onwards. The lakeshore road is slippery with fallen leaves and there is a risk of frozen road surfaces morning and evening, so drive slowly. The sun sets early in this season, so finish your activities while it is still light.

Kinshuko Lake is the artificial lake of the Yuda Dam, built on the Waga River, and is located in Nishiwaga Town, Waga District, Iwate Prefecture.

Enquiries: Nishiwaga Town Tourism Association, tel. 0197-81-1135

Tips

Autumn foliage season is the main attraction. The Nishiwaga area is heavy snowfall country with winter closures — visit before mid-November for reliable access.

📚 Sources

• Iwate Prefecture Tourism Association, "Iwate no Tabi": Kinshuko
• Ministry of Land, Infrastructure, Transport and Tourism, Tohoku Regional Development Bureau, Kitakami River Dam Integrated Management Office: Yuda Dam
• Roadside Station "Kinshuko"