Mount Amakazari rises to 1,963.2 meters along the border between Otari Village in Nagano Prefecture and Itoigawa City in Niigata Prefecture. Located on the western edge of Myoko-Togakushi Renzan National Park, the mountain belongs to the Kubiki Mountain Range and is one of Japan’s 100 Famous Mountains.
Although Mount Amakazari is not quite 2,000 meters high, its summit offers an impressive 360-degree panorama. On clear days, hikers can see the Sea of Japan in the distance as well as the surrounding mountains of the Kubiki Range and the Northern Alps. Its distinctive shape, rich alpine environment, and dramatic scenery have made it a popular destination for hikers seeking a rewarding mountain experience.
The origin of the name Amakazari is not certain, and several theories have been proposed. One suggests that the mountain was once called Ama-yama, meaning a mountain where the heavens or rain were worshipped, and that the name gradually changed into Amakazari.
Another theory relates to the unusual shape of the summit. Mount Amakazari has two distinct peaks that resemble a cat’s ears. Because of this shape, the mountain was once reportedly known by names such as Ryokazari-yama or Ryosho-zan before eventually becoming Amakazari.
The summit consists of a South Peak and a North Peak. The South Peak has a summit marker and a second-order triangulation point, while the North Peak is home to a group of stone Buddhist images.
The statues face toward the Sea of Japan, suggesting that Mount Amakazari was historically a mountain of religious importance to communities on the Echigo, or Niigata, side. Some of the stone figures are traditionally attributed to Rakan Shonin, a monk from Itoigawa. Today, they remain a quiet reminder of the mountain’s long spiritual history.
On the Niigata side, the main trail begins at Amakazari Onsen. The route climbs from the upper reaches of the Nechi River along the Yakushi Ridge. Although relatively short, it is known for steep ascents and can be physically demanding.
In the past, hikers primarily followed a route through Kodo-kura-sawa, but the present trail has been developed to climb more directly along the ridge. Even Kyūya Fukada, the author who selected Japan’s 100 Famous Mountains, attempted to climb Mount Amakazari from this side. According to his own writings, he lost the trail and eventually had to abandon his attempt.
From Nagano Prefecture, the principal trailhead is Amakazari Kogen Campground, which can be reached in about 45 minutes on foot from the hot spring area of Otari Onsen. Roads also lead to the campground, making this side relatively convenient for hikers arriving by car.
The trail is generally well established and is particularly popular with ordinary hikers. At an elevation of approximately 1,445 meters, the route crosses Arasugawa and then climbs along the northeastern ridge of Mount Amakazari.
The journey passes through a landscape of mountain streams, forests, rocky terrain, and seasonal alpine vegetation. The changing scenery makes the trail as rewarding as the summit itself.
Other routes include trails approaching from Oami in Matsukawa Village and routes used for spring mountain skiing. Mount Amakazari can also be approached from Mount Onagi to the south.
The view of Mount Amakazari from the east is particularly distinctive, emphasizing its character as an isolated mountain rising above the surrounding landscape. Routes beginning at Yutoge Pass can also be combined with a climb of Mount Amakazari, offering options for hikers who want to explore more of the surrounding mountains.
The greatest attraction of Mount Amakazari is its spectacular summit panorama. When weather conditions are favorable, hikers can look across the Sea of Japan, the mountains of the Kubiki Range, and the majestic peaks of the Northern Alps.
The two-peaked summit, popularly described as resembling a cat’s ears, is one of the mountain’s most recognizable features. The unusual silhouette can be clearly identified even when viewed from a distance.
Mount Amakazari is also known for the seasonal beauty found along its trails. Alpine flowers appear as the snow melts, summer brings a succession of colorful mountain plants, and autumn transforms the slopes into a vivid landscape of red, orange, and yellow.
From the snowmelt season through around June, hikers may encounter Asian skunk cabbage, dogtooth violets, yellow marsh marigolds, Sanekazuura, and wood anemones. These early-season flowers emerge as the mountain gradually awakens from its long winter.
From early summer through around August, the trails are decorated with Hakusan primroses, giant hostas, ghost plants, and four-leafed orchid-like wildflowers. The combination of alpine vegetation and mountain scenery makes summer hiking especially enjoyable.
Around September, hikers may see monkshood, alpine hare’s-ear, and large-flowered gentians. By October, the mountain enters its celebrated autumn foliage season, when the slopes are covered in brilliant shades of red and yellow.
The contrast between colorful forests, rocky ridges, and distant mountain peaks makes October one of the most spectacular times to experience Mount Amakazari.
One of the pleasures of visiting Mount Amakazari is the opportunity to combine hiking with a traditional Japanese hot spring experience. At the trailhead area, Amakazari Onsen’s Miyakowasure-no-Yu is a natural hot spring bath supplied directly by its source.
The indoor and outdoor baths provide views of the surrounding forest, which becomes especially beautiful with fresh green foliage in spring and vibrant colors in autumn.
After a day on the mountain, soaking in a hot spring while surrounded by nature offers a relaxing way to recover from the climb. The combination of mountain hiking and onsen bathing is one of the distinctive pleasures of the Amakazari area.
Parking areas are available at both the Niigata-side and Nagano-side trailheads. Travelers using public transportation can reach the Niigata-side trailhead by a reservation-based shared taxi, while the Nagano side is served by Otari Village buses.
Mount Amakazari becomes particularly popular during the autumn foliage season. Large numbers of hikers can lead to congestion on the trails, while roadside parking may also become an issue on access roads.
To improve safety and manage visitor numbers, restrictions were introduced from autumn 2021, including a prohibition on entering the mountain after 8:00 a.m. during designated periods and requirements concerning the submission of hiking registration forms.
Visitors should check the latest local regulations and trail conditions before setting out, particularly during the busy autumn season.
Mount Amakazari may be lower than many of the great peaks of the Northern Alps, but its appeal is anything but small. Its distinctive twin-peaked silhouette, panoramic summit views, alpine flowers, colorful autumn forests, and long history of mountain worship create a remarkably rich experience.
The mountain also offers several approaches with different levels of challenge, from the steep Niigata-side trail to the popular route from Amakazari Kogen on the Nagano side. Along the way, hikers can experience the changing character of the landscape, from forests and mountain streams to rocky ridges and open summit scenery.
With a natural hot spring waiting at the foot of the mountain, Mount Amakazari is an especially rewarding destination for travelers who want to experience the mountains, seasonal nature, traditional culture, and onsen of the Japanese Alps in a single journey.