Ono-juku is a historic post town that stretches across what are now Tatsuno Town in Kamiina District and Shiojiri City, Nagano Prefecture. It flourished as a post station on the early Nakasendo route and the Sanshu Kaido, serving as an important transportation hub between the Suwa and Matsumoto areas and the Ina Valley.
Although the major highway routes later changed, the area retains a quiet historic atmosphere. Traditional buildings, old shrines, and surrounding natural landscapes offer visitors a glimpse into the history of travel and everyday life in central Japan.
The Ono area has long occupied an important position between the Matsumoto and Suwa regions and the Ina Valley. Its location made it a natural crossroads for people and goods moving between these areas.
According to the Ono Family Documents, in 1591, during the rule of Toyotomi Hideyoshi, the area was divided along the Karasawa River into Kita-Ono Village in Chikuma District and Minami-Ono Village in Ina District.
This division continued into the Edo period. Kita-Ono Village was administered as territory under the Matsumoto Domain, while Minami-Ono Village was administered as territory under the Hatamoto Chichimura family. Both areas were ultimately treated as territories under direct shogunate administration.
This historic division remains visible today: the northern area belongs to Kita-Ono in Shiojiri City, while the southern area belongs to Ono in Tatsuno Town. This unusual geographical and administrative history helped shape the distinctive culture and townscape of Ono-juku.
Ono-juku developed as a post town following the construction of an early route of the Nakasendo at the beginning of the Edo period. The route was developed under the direction of Okubo Nagayasu and connected Shimosuwa-juku with the Ina Valley.
Travelers coming from Shimosuwa passed through Kawagishi in present-day Okaya City, crossed the Ono Pass, and reached Ono in Tatsuno. From there, the route continued westward over Ushikubi Pass toward Niekawa-juku.
Ono-juku was also connected to the north-south Sanshu Kaido, also known as the Ina Kaido. To the north, the road led toward Shiojiri-juku, while to the south it continued toward Miyaki-juku.
Because these routes intersected at Ono, the post town became an important center for travelers and merchants and prospered as a place where people, goods, and information passed through.
The early Nakasendo route was changed only a little more than a decade after it was established. A new route passing through Shiojiri-juku became the principal course, leaving Ono-juku outside the main Nakasendo route.
Even after this change, Ono continued to prosper as a post town along the Sanshu Kaido and remained active until the Meiji period.
An interesting system developed between the two villages that made up the Ono area. Kita-Ono Village was responsible for transferring loads traveling south, while Minami-Ono Village handled loads traveling north. This division of responsibilities encouraged cooperation between the two communities and helped maintain the flow of goods through the post town.
Much of the historic townscape visible today consists of buildings reconstructed after a major fire at the end of the Edo period.
Among the most notable structures is the Former Ono Family Residence, also known as the Ono-juku Toiya, a designated Nagano Prefectural Treasure. The substantial houses along the street feature a traditional architectural style known as honmune-zukuri, characterized by imposing proportions and distinctive roof forms.
Following the fire, craftsmen from the Matsumoto, Suwa, and Kamiina areas were brought together and construction took place across the district. As craftsmen from different areas contributed their own techniques, several regional architectural styles can be seen side by side.
Walking along the streets lined with traditional houses and tiled roofs offers a strong sense of the atmosphere of an old Japanese post town and provides a quiet opportunity to imagine the travelers who once passed through here.
The area around Ono-juku is also home to two important shrines: Ono Shrine and Yahiko Shrine. They were originally regarded as a single shrine complex, but when Ono Village was divided, the northern side became Ono Shrine and the southern side became Yahiko Shrine.
Yahiko Shrine remains in the southern part of the former village and is now an enclave of Tatsuno Town surrounded by the territory of Shiojiri City.
The forests surrounding both shrines are collectively known as the Yahiko and Ono Shrine Sacred Forests and are designated as a Natural Monument of Nagano Prefecture. The preserved woodland provides a beautiful setting in which visitors can experience the connection between nature and religious traditions that has continued since ancient times.
Several attractions around Ono-juku make it possible to explore the area’s history and natural environment in greater depth.
Yahiko and Ono Shrine Sacred Forests are protected as a Natural Monument of Nagano Prefecture and offer a peaceful glimpse into the area’s long religious tradition.
Former Ono Family Residence (Ono-juku Toiya) is a Nagano Prefectural Treasure and an important surviving example of the traditional architecture associated with the post town. It was also the childhood home of the maternal family of Shigehiko Hasumi.
Ono’s Natural Habitat of Weeping Chestnut Trees is designated as a Natural Monument of Japan. Together with the surrounding Shidareguri Forest Park, it offers an opportunity to enjoy the area’s distinctive natural environment.
Remains of the Early Nakasendo and Ich里zuka Milepost preserve traces of the historic highway and provide a tangible connection with the routes used by travelers during the Edo period.
Shiojiri City Furuta Akira Memorial Museum, opened in 1996, stands on the site associated with the birthplace of writer Akira Furuta and introduces aspects of his life and literary career.
Ono-juku is easily accessible by train. The nearest station is Ono Station on the JR East Chuo Main Line’s Tatsuno Branch Line, from which the historic area can be reached on foot.
By car, Ono-juku is approximately 30 minutes from both the Ina-Kita Interchange on the Chuo Expressway and the Shiojiri Interchange on the Nagano Expressway.
Ono-juku can also be incorporated into a journey along the historic Sanshu Kaido. Shiojiri-juku lies to the north, while Miyaki-juku lies to the south, allowing travelers to explore the former post towns and landscapes that once supported movement through the region.
Ono-juku brings together the history of an old post town, traditional architecture, religious heritage, and surrounding nature. Although its role as a major transportation hub belongs to the past, the quiet streets still preserve traces of the people, travelers, and merchants who once passed through here.
For visitors interested in Japan’s historic highways and the transition from the Edo period to modern Japan, Ono-juku offers a more intimate experience than the country’s better-known post towns. A leisurely walk through its traditional streets, followed by visits to its shrines and natural landmarks, provides a fascinating way to discover the lesser-known history of Nagano.