Sarashina Shrine is a historic Shinto shrine in Chikuma City, Nagano Prefecture. With a long history closely connected to the former Sarashina region, the shrine is listed in the Engishiki Jinmyocho, a tenth-century register of officially recognized Shinto shrines, and is therefore regarded as a Shikinaisha.
The shrine’s former status was that of a Go-sha, or district shrine, and it has been an important object of local worship for generations. Its name, Sarashina, is derived from the historic place name Sarashina, one of the most evocative names associated with the cultural landscape of northern Nagano.
Today, Sarashina Shrine offers visitors a fascinating combination of ancient religious traditions, medieval history, archaeological heritage and seasonal nature. Its quiet grounds preserve traces of the area’s past that extend far beyond the shrine buildings themselves.
Three important deities are enshrined at Sarashina Shrine.
Honda-wake-no-Mikoto is identified with Emperor Ojin, the 15th emperor of Japan, and is widely worshipped as Hachiman, a deity traditionally associated with warriors and protection.
Okinaga-Tarashi-hime-no-Mikoto is identified with Empress Jingu, a legendary figure in Japanese history who is traditionally associated with national peace, prosperity and the continuation of the imperial lineage.
O-Sazaki-no-Mikoto is identified with Emperor Nintoku, remembered in Japanese tradition as a ruler who cared deeply for the welfare of his people and was celebrated for benevolent government.
According to shrine tradition, Sarashina Shrine was originally established during the reign of Emperor Ingyo. It is said to have been founded by Prince Sakai no Kurohiko on a mountain ridge in the present-day Sarashina mountain area.
The shrine’s original location, however, did not remain stable. In 887, a powerful earthquake caused part of the mountain site to collapse. As a result, the shrine was moved from the mountain to a location closer to the foot of the mountains, where it remains today.
This tradition reflects the region’s geological as well as religious history. The mountains around Chikuma have long shaped the lives and beliefs of the people who settled in the area.
During the medieval period, Sarashina Shrine was known as Wakamiya Hachimangu. The shrine attracted strong devotion from both local communities and members of the warrior class.
The medieval epic Heike Monogatari-related tradition found in the Genpei Seisuiki contains a reference to people paying their respects to a Hachiman shrine. This has been interpreted as a possible reference to the shrine visited by Kiso Yoshinaka, although the exact identification remains a matter of historical interpretation.
The connection with Hachiman worship is particularly significant because Hachiman became one of the most important deities of Japan’s samurai class. Sarashina Shrine therefore provides an intriguing link between local religious history and the wider development of warrior culture in medieval Japan.
In 1757, during the Edo period, the shrine adopted its present name, Sarashina Shrine.
A record kept by the Matsushiro Domain in 1759 indicates that the shrine was granted three koku of rice land as shrine territory. Such grants were an important source of economic support for religious institutions during the feudal period.
Before the Meiji period, Shinto and Buddhism were often practiced together. Sarashina Shrine was associated with a Buddhist temple known as Wakamiya Hachiman Jinguji, which belonged to the Shingon school of Buddhism. The shrine and temple functioned together as part of the local religious landscape.
This centuries-old combination of Shinto and Buddhism came to an end during the Meiji period, when the government introduced the policy of Shinbutsu Bunri, the separation of Shinto and Buddhism.
The present torii gate stands on the eastern side of the shrine grounds, facing the Chikuma River. Interestingly, this location was once considered the rear of the shrine rather than its main entrance.
The character of the approach changed during the modern period. The construction of Tokura Station during the Meiji era and the later construction of Taisho Bridge across the Chikuma River made the eastern side more accessible, gradually turning it into the principal approach for visitors.
The original approach was on the western, mountain side. In earlier times, worshippers approached the shrine from the direction of Manji Pass, crossing the Hachiojiyama area. Walking the grounds today therefore offers an opportunity to imagine how pilgrims and local worshippers once reached this sacred site.
Among the historic objects preserved within the grounds is an old Hokyoin-to stone pagoda, traditionally dated to 1378.
The stone monument is also associated with a story involving Prince Muneyoshi, a son of Emperor Go-Daigo who supported the Southern Court during the period of divided imperial rule. According to local tradition, 45 local warriors who followed the prince erected the monument in preparation for a battle in which they expected to die.
For this reason, the monument is sometimes known as “Gyakushu-zuka,” or the “counterattack mound.” In 1988, it was designated a Chikuma City Tangible Cultural Property.
The monument provides a tangible reminder of the turbulent political and military history of medieval Japan and the role played by local warrior families in the conflicts of the period.
Another unusual feature of Sarashina Shrine is the presence of earthen embankments on the northern and eastern sides of the grounds.
These structures resemble the defensive earthworks of a medieval fortified residence or castle compound. They are believed to be traces of a stronghold used by warriors associated with the Southern Court.
For visitors interested in Japanese castles and medieval history, these earthworks offer a different kind of historical experience. Rather than a surviving stone castle, the site preserves subtle traces of a medieval fortified settlement within the shrine grounds.
Sarashina Shrine also preserves an important archaeological artifact known as a slender bronze sword. The sword was excavated during the Edo period, in the Bunka era, from the nearby Yatsuzuka archaeological site.
The artifact is significant because it provides evidence that bronze culture originating around northern Kyushu had spread over a considerable distance into the Shinshu region of central Japan.
The sword has been preserved as a shrine treasure and was designated a Chikuma City Tangible Cultural Property in 1988. It provides a fascinating connection between the religious site and the much older archaeological history of the surrounding region.
The shrine’s traditional community of parishioners once consisted of three villages: Wakamiya, Kurohiko and Shibahara.
Among them, the former village of Kurohiko was said to have been a substantial settlement with as many as 1,000 households of non-farming residents. Local tradition holds that a major flood during the Sengoku period caused the settlement to disperse, forcing many of its inhabitants to leave.
The names of these historic villages are also thought to be connected with the names of two imperial princes associated with the shrine’s traditions. These stories illustrate how deeply the shrine became woven into the identity and memory of the surrounding communities.
One of the more unusual stories associated with Sarashina Shrine concerns a cave or underground passage on the southern side of the grounds. The passage was once said to extend in the direction of Kamiyamada Onsen.
During World War II, part of the underground space was used as a military production facility. Construction was underway and portions of the facility had been completed when the war ended, bringing the project to an end.
After the war, the caves were used for various purposes for a time. An Inari shrine was established inside, and a restaurant also operated there. The underground facilities were eventually closed during the middle of the Showa period.
Although the underground spaces are no longer part of the ordinary visitor experience, the story adds another intriguing layer to the history of the shrine and its surrounding landscape.
One of the most beautiful seasonal attractions at Sarashina Shrine appears in spring. The north-facing slope on the southern side of the shrine grounds becomes covered with delicate katakuri flowers, also known as dogtooth violets.
The flower colony is carefully maintained by the local volunteer group Midori no Support Tai. Each year, a Katakuri Festival is held from around late March to early April, when the flowers are in bloom.
The delicate purple flowers carpeting the woodland floor create a striking contrast with the historic shrine grounds. For visitors interested in combining cultural sightseeing with nature, spring is an especially rewarding time to visit.
Sarashina Shrine is much more than a traditional place of worship. Its grounds preserve evidence of different periods of Japanese history, from ancient religious traditions and archaeological discoveries to medieval warriors, the Southern Court, Edo-period religious practices and the dramatic changes of the modern era.
The surviving Hokyoin-to stone pagoda, medieval earthworks and bronze sword make the shrine particularly interesting for travelers who enjoy discovering historical details that are easy to overlook at first glance.
At the same time, the surrounding trees and seasonal flowers create a peaceful environment for walking and quiet reflection. In spring, the katakuri flowers add a particularly beautiful natural dimension to the historic site.
Sarashina Shrine offers travelers an opportunity to explore the deeper history of Chikuma and the former Sarashina region. Its connection with the Engishiki, Hachiman worship, Kiso Yoshinaka, medieval warriors and the traditions of the Southern Court reveals a complex history extending across many centuries.
At the same time, the shrine remains closely connected with the local community and its seasonal traditions. A visit during the spring Katakuri Festival is particularly rewarding, but the quiet grounds, historic monuments and traces of the old fortified settlement make the shrine worth exploring at any time of year.
For those traveling through Chikuma City and the wider northern Nagano region, Sarashina Shrine is a fascinating place to slow down, look closely at the landscape and discover the layers of history preserved within this quiet corner of Shinshu.