Nan-moku Village, located in Kanra District in southwestern Gunma Prefecture, is a rural mountain community blessed with abundant natural beauty. The village is known for having one of Japan’s highest proportions of elderly residents. At the same time, this reflects the long history of mountain-village culture and the strong bonds among local residents that continue to this day.
Nan-moku enjoys a relatively mild climate, with little snowfall even in winter. Although it is located in a mountainous area, its comfortable climate makes it an appealing destination throughout the year.
In the past, the local economy flourished through sericulture and konnyaku cultivation. Stone-walled terraced fields can still be seen along the mountain slopes, while traditional farmhouses have been carefully preserved. The sounds of birdsong and gently flowing streams create a peaceful atmosphere that allows visitors to relax away from the bustle of everyday life.
Nan-moku Village stretches approximately 16.5 km from east to west and 9.2 km from north to south, covering an area of 118.83 square kilometers. Elevations range from approximately 320 m to 1,442 m, creating a diverse mountainous landscape.
The village is surrounded by numerous mountains, including Mount Arafune (1,423 m), Mount Hikage, Mount Oya, Mount Eboshidake, Mount Ozawa, Mount Kanadake, Mount Kurotakiyama, Tateiwa, Mount Hinozawa, and Mount Yotsumatayama. Several are listed among the 100 Famous Mountains of Gunma.
Rocky peaks and unusual rock formations are scattered throughout the area, creating hiking routes with a wide variety of scenery. The rugged landscape is particularly appealing to visitors who enjoy mountain walking and outdoor exploration.
The Nan-moku River flows through the center of the village before joining the Kabura River and eventually the Tone River. Its crystal-clear waters are home to fish such as ayu sweetfish, char, and Japanese trout, making the river one of the symbols of Nan-moku’s natural environment.
Several tributaries, including the Oshiozawa, Hinozawa, and Kumakura Rivers, flow through the area. Together with the surrounding forests and mountains, they create beautiful scenery that changes dramatically with the seasons.
According to local tradition, the warlord Takeda Shingen led his forces through the Yochi Pass in the Kumakura area during Japan’s Warring States period.
In 1955, Iwado Village, Tsukigata Village, and Ozawa Village merged to form what is now Nan-moku Village. At that time, the cultivation of konnyaku was an important part of the local economy and supported life in the mountain community.
In 2007, roads were cut off and parts of the village became isolated following typhoons and heavy rainfall. The community overcame these difficulties through cooperation and mutual support. Such experiences have helped strengthen the close connections among residents that characterize the village today.
Nan-moku is sometimes called the “Village of Waterfalls” because numerous beautiful waterfalls can be found throughout the area. Three of them are particularly well known as the Three Great Waterfalls of Nan-moku.
Sandaki Falls has a total drop of approximately 50 m. A clear stream originating near the rocky peak of Biiwa Rock cascades down the mountainside in three stages, creating an impressive sight.
The waterfall can be reached by a light hiking route of approximately 40 minutes from the parking area. During the autumn foliage season, the surrounding mountains are transformed into a spectacular landscape of golden and red leaves. Although a walking trail is provided, visitors should take care on uneven sections of the route.
Sen-ga-taki Falls is an elegant waterfall approximately 35 m high. Water appears as a single white stream flowing down a dark gray rock face.
The waterfall is designated as both a Natural Monument and Place of Scenic Beauty by Gunma Prefecture. Located close to the road, it is relatively easy to visit and enjoy.
Zō-ga-taki Falls has a drop of approximately 30 m. Its name comes from the waterfall’s appearance, which is said to resemble an elephant’s trunk.
The waterfall is particularly atmospheric during the fresh green season, when afternoon sunlight illuminates the surrounding forest and rocks.
Semi Gorge is a dramatic gorge where steep rocky mountains rise on both sides. It is designated as both a Natural Monument and Place of Scenic Beauty by Gunma Prefecture.
In mid-April, mitsubatsutsuji azaleas add vivid color to the landscape, while the gorge is surrounded by autumn foliage in late November.
Kurotakisan Fudōji Temple stands at an elevation of approximately 870 m on Mount Kurotakiyama. The temple is said to have been founded by the Buddhist monk Gyōki around 1,300 years ago and has long been a place of mountain worship.
The temple gate, Fudō Hall, and Daiyūhōden Hall stand quietly amid the mountains, creating a deeply peaceful atmosphere.
With advance reservations, visitors can enjoy fucha ryōri, a traditional Buddhist vegetarian cuisine. Temple lodging and Zen experiences are also available. In autumn, the temple grounds are surrounded by colorful foliage and become especially beautiful.
The Dainichō no Hi-to-boshi Festival is a traditional fire festival held every year on August 14 and 15. It is recognized as a Selected Intangible Folk Cultural Property of Japan and an Important Intangible Folk Cultural Property designated by Gunma Prefecture.
Participants swing bundles of burning straw through the darkness, creating spectacular circles of fire. The festival is traditionally said to have originated as a celebration of a victory during the Warring States period.
The Ōnita Hitotsubana Festival is a spring festival held at Ōnita Dam on May 3. Surrounded by fresh green foliage and seasonal flowers, the event offers an opportunity to experience the lively atmosphere of the local community.
Approximately 100,000 katakuri flowers grow in a large colony in the Muguruma area. They usually reach their peak from late March to early April.
Often called the “Queen of Spring,” these delicate flowers cover the forest floor, creating a charming seasonal landscape.
Because Nan-moku has considerable differences in elevation, the autumn colors develop gradually. Foliage begins around the higher mountain areas in late October, while places such as Kurotakisan Fudōji Temple and Semi Gorge typically reach their best in late November.
The mountains of Nan-moku receive relatively little snow even during winter, making the area suitable for hiking throughout much of the year. The rugged peaks and dramatic rock formations provide a variety of trails and viewpoints.
Tateiwa is a dramatic rocky peak known as the “Dolomites of Jōshū.” From the summit, hikers can enjoy views toward Mount Arafune, Mount Asama, and the Yatsugatake Mountains.
Mount Kanadake is known for its excellent panoramic views over the mountains of western Gunma. In spring, hitotsubana and mitsubatsutsuji azaleas add color to the mountainsides.
Mount Eboshidake and Mount Mitsuiwadake are two striking rocky peaks rising on opposite sides of Ōnita Dam. In late April, the mountainsides are decorated with blooming hitotsubana flowers.
Roadside Station Oasis Nan-moku offers locally produced specialties and fresh agricultural products, making it a convenient place to discover the flavors of the region.
After hiking, visitors can relax at Konohai-shi-no-Yu, a community bath that uses local mineral spring water. It is an ideal place to soothe tired muscles after exploring the surrounding mountains.
Nan-moku Village is not a destination filled with large-scale tourist attractions. Its appeal lies instead in the peace, warmth, and authentic rural atmosphere that can be experienced away from the crowds.
The mountains and clear streams, historic traditions and festivals, and the welcoming smiles of local residents come together to create landscapes and experiences that can remain in visitors’ memories for years to come.
For those looking to leave everyday life behind and enjoy a slower pace, Nan-moku Village offers a peaceful journey into the mountains of Gunma, where nature, history, and local community come together.