Manganji Temple is a historic Buddhist temple located in the Makimura area of Hotaka, Azumino, Nagano Prefecture. Surrounded by forests and mountain scenery, the temple belongs to the Buzan School of Shingon Buddhism and is dedicated to Senju Kannon, the Thousand-Armed Kannon.
The temple is also the 26th temple of the Shinano 33 Kannon Pilgrimage and has long been affectionately known as “Shinano Koya,” a name comparing its spiritual atmosphere to Mount Koya, one of Japan’s most important centers of Shingon Buddhism.
Ancient trees line the grounds, while cherry blossoms and azaleas brighten the temple in spring and colorful maple leaves transform it in autumn. The combination of religious history, traditional architecture, and peaceful natural surroundings makes Manganji a particularly atmospheric destination for travelers interested in the cultural heritage of rural Japan.
According to temple tradition, the history of Manganji began around 725, during the Jinki era. A small statue of Senju Kannon, measuring only about 1.8 sun, or approximately 5 centimeters, was said to have emerged from a pond. A hall was built to enshrine the statue, forming the origin of the temple.
Another long-standing legend connects Manganji with Sakanoue no Tamuramaro, the famous general and early imperial military leader. According to the tradition, after defeating Hachimen Daio, a legendary figure associated with the Azumino region, Tamuramaro revived Manganji as a guardian temple for the area.
The story of Tamuramaro’s involvement is part of a broader tradition found at several temples in the surrounding region. Although the historical details are difficult to verify, the legend remains an important part of the cultural story surrounding Manganji.
By the Heian period, Manganji was already an important center of religious devotion in the area. Historical documents also indicate that during the Kamakura period, Minamoto no Yoshinaka, better known as Kiso Yoshinaka, donated land to the temple.
The temple suffered a major fire during the turbulent Sengoku period, when Japan was divided among competing warlords. Reconstruction progressed between 1571 and 1621, and records describe active religious work under a monk named Sonno.
In 1582, when Oda Nobunaga gained control of Azumi District, he issued a red-seal document promising protection for Manganji. The following year, Matsumoto Castle lord Ogasawara Sadayoshi returned to power in the region and developed Manganji as an important temple for prayers and religious rites.
During this period, a grand Kannon Hall was constructed. This became an important foundation for the temple complex that developed in later centuries.
During the Edo period, Manganji received strong protection from the Matsumoto Domain and was granted a temple estate of 77 koku. Its position as the 26th temple on the Shinano 33 Kannon Pilgrimage brought pilgrims from across the region, strengthening its role as a center of religious culture in Azumino.
In 1814, a fire destroyed the kitchen and other buildings. Soon afterward, the famous Edo-period writer Jippensha Ikku visited the area. His experiences during his stay were later reflected in his travel novel Zoku Hizakurige, which includes a depiction of Manganji.
Reconstruction continued during the Bunsei era, and the temple complex gradually regained the orderly appearance that characterizes it today. The temple thus became not only a place of worship but also part of the cultural landscape encountered by travelers and writers journeying through Shinano.
The temple faced another major challenge after the Meiji Restoration. The nationwide movement to separate Buddhism and Shinto, accompanied by the destruction or closure of many Buddhist institutions, led to Manganji being temporarily abolished in 1870.
Local believers, however, continued to support the temple, and it was revived in 1876. A temple institution was subsequently established using the former Ryoko-in temple from Nara Prefecture. In 1909, it once again adopted the name Manganji.
The temple continued to endure difficult periods. Its Kannon Hall was destroyed by fire in 1946, yet Manganji survived and continued its role as an important center of faith in the Azumino area.
The area around Manganji has a long history of people living closely alongside the natural environment. The Makimura district was once known as Ikano-maki, an official pasture during the Heian period where horses belonging to the government were raised.
The land between the Karasu River and Kawakubosawa River was well suited to managing horses, illustrating how the area’s rivers, forests, grasslands, and human settlements were closely interconnected.
In 1978, the former Hotaka Town developed the Kuriozan Manganji Azalea Garden around the temple, planting cherry trees, azaleas, maples, and other trees. In 1986, approximately 3.4 hectares around Manganji was designated by Nagano Prefecture as a Local Environmental Conservation Area, helping protect its valuable natural environment.
Manganji once stood beneath an enormous sacred cedar known as the Great Cedar of Manganji. The tree was estimated to be several hundred years old and measured approximately 49 meters in height with a trunk circumference of about 10 meters.
Known locally as the “Single Cedar,” it was a familiar landmark and a spiritual symbol of the temple. Sadly, the tree eventually died after being struck by lightning. Its former grandeur can still be appreciated through old drawings and photographs.
Until around the 1950s, Manganji also hosted a traditional religious observance on August 9, the day of the Segaki memorial service for hungry spirits. People from surrounding areas came to the temple to welcome recently deceased family members into the Buddhist memorial tradition, staying overnight before returning home the following day.
This custom has disappeared, but it provides a fascinating glimpse into the depth of local religious traditions and the important role that temples once played in community life.
At the entrance to the approach is a distinctive wooden bridge known as the Okyo Bridge, also called Mimyo Bridge. The bridge is approximately 10 meters long and 2.5 meters wide, with an elegant roofed structure.
What makes the bridge particularly unusual is the Buddhist scripture written on its underside. Traditionally, visitors are said to have recited Buddhist sutras while crossing the bridge, turning the simple act of entering the temple grounds into a moment of spiritual preparation.
Near the Okyo Bridge stands a small Jizo Hall containing approximately 500 statues of Jizo. Jizo is a beloved Buddhist figure associated with protection and compassion, particularly toward children and travelers.
The hall has long been revered as a Jizo for Childbearing. According to local tradition, visitors wishing for children could borrow a Jizo statue and sleep beside it, praying for the blessing of a child. The custom reflects the intimate and personal nature of folk Buddhism in rural Japan.
Another special feature of Manganji is the clear spring water that emerges within the temple grounds. Known as Meisui, or “Water of Life,” it rises from an elevation of approximately 900 meters.
The water is exceptionally clear and soft, and many visitors have traditionally taken it home with them. It is also regarded as sacred water protected by the blessings of Kannon, adding another layer of spiritual significance to the temple’s natural surroundings.
Manganji is reached by taking a bus bound for Maki from either JR Akashina Station on the Shinonoi Line or JR Hotaka Station on the Oito Line. The journey takes approximately 40 minutes, followed by a walk of about 40 minutes from the final bus stop.
Its somewhat secluded location is part of its appeal. Rather than being a temple surrounded by a busy urban district, Manganji sits quietly at the foot of the mountains, where forests, streams, seasonal flowers, and historic religious traditions come together.
For travelers exploring Azumino, a visit to Manganji Temple, or “Shinano Koya,” offers an opportunity to experience a quieter side of Japanese Buddhist culture. Its legends, pilgrimage history, traditional customs, sacred spring, and beautiful natural setting reveal a cultural landscape shaped over more than a thousand years by the close relationship between people, faith, and nature.