Jika Ruins

The Jike Site: A Buried Ritual Ground on the Noto Coast

In 1978, road crews building a toll highway along the western edge of the Noto Peninsula cut into a sand dune in the city of Hakui and struck something they had not expected: scorched earth, scattered pottery, and corroded bronze. What followed was three years of large-scale excavation by Ishikawa Prefecture and Hakui City. The dunes turned out to be hiding the Jike Site (Jike iseki), an ancient sanctuary that today covers 58,207 square meters across the Jike and Yanagida districts and is protected as a National Historic Site.

The settlement layers here run from the early Jōmon period to medieval times, so in strict terms this is a multi-period complex site. But the finds that gave it national importance belong to the 8th and 9th centuries, the Nara and Heian eras, when this strip of shore functioned as a place of organized worship. Local people gave it a memorable nickname: the "Shōsōin of the shore" (Nagisa no Shōsōin). The original Shōsōin is the imperial repository at Nara, famous for preserving 8th-century treasures intact. The comparison fits, because the dry coastal sand sealed metal, ceramics, and ritual objects in remarkably good condition.

A Sanctuary at the Gateway to Noto

Hakui sits at the narrow neck of the Noto Peninsula, where the warm coastal current carried people, goods, and ideas onto these beaches for thousands of years. The land around the Jike Site is unusually dense with early remains. The Yayoi-period Yoshizaki-Suba settlement, where rice farming took an early hold in Noto, lies nearby, and large burial mounds were raised across the district during the Kofun period.

By the Nara period, the shore at Jike had become something more specific than a settlement. Written records make the reason clear. Keta Shrine, the sanctuary that would later become the first-ranked shrine of Noto Province, already existed in ancient times, and the imperial state treated it with marked favor. The eighth-century poetry anthology Man'yōshū records that Ōtomo no Yakamochi, the celebrated poet then serving as governor of neighboring Etchū Province, made a formal visit to "Keta Jingū" soon after taking up his post. A provincial shrine drawing that level of attention from the central government was rare. The Jike Site is widely understood to be the working ground of that ancient Keta Shrine, the place where its rituals were prepared and carried out.

The sanctuary did not last. Researchers believe drifting sand overwhelmed the site twice, once in the mid-Heian period around the 10th century and again in the late Muromachi period around the 15th century. Each time the dunes advanced, they buried what stood there, which is the same process that later preserved it.

Why the Site Was Designated

The Agency for Cultural Affairs listed the Jike Site as a National Historic Site on January 24, 2012, under the designation category for the remains of shrines and temples and other places connected to ritual and religious belief. The wording matters. Most of what is known about provincial shrines in the 8th and 9th centuries comes from texts. Physical evidence of how ancient worship was actually conducted is scarce, and at Jike that evidence survives in the ground.

Two kinds of discovery anchored the case for designation. The first is the ritual area itself, marked by large burnt-earth features where great fires appear to have been part of the ceremonies. Excavators found no clear parallel for these elsewhere in Japan. Alongside them lay stone-built hearths and concentrations of pottery, straight swords, magatama beads, and bronze mirrors, all pointing to a space set apart for ritual rather than daily life.

The second is a body of writing. Among the pottery were vessels brushed with ink, bearing characters such as those for "shrine," "shrine kitchen," "office," "deity," and "offering." Read together, these inscriptions suggest a working organization with a shrine officiant at its head, supported by a kitchen for preparing ritual goods and an office for managing the rites. The presence of objects normally tied to state institutions led researchers to conclude that the worship here was overseen by the central government, marking the site as a kansha, a shrine administered by the state.

What the Excavations Revealed

Stand at the museum cases in Hakui and the range of finds is striking. The bronze objects include a kaijū-budō-kyō, a "sea-beast and grape" mirror of a type that traveled the East Asian trade routes, along with other mirrors, bells, decorative belt fittings, and bowls. There are iron pieces too, among them an iron mirror, iron bells, and swords, as well as Wadōkaichin, one of Japan's earliest coins.

Some of the material is genuinely unusual for a provincial site. Two-color and three-color glazed ceramics, rarely recovered outside major centers, turned up here, and so did crucibles and tools for working glass. These were not everyday goods in 9th-century Noto. Their presence is read as proof that the sanctuary was plugged into networks reaching far beyond the peninsula.

The buildings tell their own story. Excavators traced 37 pit dwellings, 44 post-built structures, and 22 medieval buildings ringed with low earthworks, along with furnaces for salt-making and small-scale iron smithing. Early 8th-century pit dwellings, rich in ritual objects, are thought to mark the homes of the shrine households who served the sanctuary. A complex of large post-built halls from the late 9th century, surrounded by ditches and fences, has the character of an administrative and religious precinct.

One interpretation gives the place a wider role. Ancient Noto faced the Sea of Japan toward the Korean peninsula and was a contact point for envoys from the kingdom of Balhae. In the beliefs of the time, foreign visitors were thought to carry "foreign gods" with them into the country. Some scholars suggest the rituals at Jike served partly to purify those arriving envoys, which would connect the site to the guest facilities that received foreign missions on this coast. The idea remains a hypothesis, but it captures why a sanctuary on a remote beach drew the attention of the state.

Planning a Visit

It helps to know what the Jike Site is and is not. There is no grand ruin to walk through. Much of the protected area lies beneath the dunes and beside the modern coast road, and Hakui City is still developing plans to turn it into an interpreted historic park. For a visitor, the rewarding approach is to treat the museum and the surrounding district as a pair.

The Hakui City Museum of History and Folklore is where the finds are displayed and explained. It introduces both the Jike Site and the nearby Yayoi-period Yoshizaki-Suba site, together with material from shrines and temples across the area. Admission is free, and the museum sits about a ten-minute walk from the east exit of JR Hakui Station on the Nanao Line. It closes over the New Year period, from late December into early January. Seeing the inked pottery and bronze mirrors first makes the quiet stretch of coast far more legible when you reach it.

Around the Site

Keta Taisha, a short distance from the dunes, is the natural companion to the Jike Site and the living descendant of the ancient shrine the excavations describe. As the first-ranked shrine of old Noto Province, it preserves several buildings designated Important Cultural Properties, including its worship hall and the main hall of its subordinate Wakamiya Shrine, the oldest building in the city. Walking the shrine grounds after seeing the artifacts closes the loop between the buried past and the place still in use.

The Yoshizaki-Suba site, also a National Historic Site, has been turned into an archaeological park and offers a clearer sense of an ancient settlement landscape. Closer to the shore, the Chirihama Nagisa Driveway is a rare stretch of beach firm enough to drive a car along the surf, and the area's distinctive folk festivals continue a thread of coastal ritual that the Jike Site shows reaching back more than a thousand years.