Guide
The Yanagi no Gosho Site, located in Hiraizumi, Iwate Prefecture, is a crucial archaeological site from the late Heian period. It is believed to be the site of the Hiraizumi-no-tachi, the administrative center that symbolized the prosperity of the Oshu Fujiwara clan. Extensive excavations have revealed numerous high-quality artifacts that testify to the advanced civilization of 12th-century Hiraizumi. Today, a 5-hectare area has been developed into a historical park where the footprints of the past—such as moats, ponds, and ancient roads—have been reconstructed. It is a place of immense historical value that allows visitors to feel the dignity of a former seat of government.
Legend has it that the first leader of the Oshu Fujiwara clan, Fujiwara no Kiyohira, moved from Esashi-gun Toyotadate to this area to establish his residence. Later, under the third leader, Fujowara no Hidehira, the site was reorganized into the grand administrative center known as Hiraizumi-no-tachi. The historical text 'Azuma Kagami' records that the residence was located north of Muryoji Temple. However, in 1189, during the invasion by Minamoto no Yoritomo's forces, Fujiwara no Yasuhira set fire to the site, leaving it in flames. The artifacts unearthed here, including Chinese white porcelain jars and large ceramic vessels from the Tokai region, provide evidence of the international trade and high standard of living during that era.
The greatest draw of the site is the way visitors can experience the advanced architecture and lifestyle of the period through reconstructed features. Within the vast grounds, you can see reconstructed post-and-lintel structures, massive moats, bridges, roads, and garden ponds. The unearthed items, such as Chinese ceramics and the first discovered Shogi pieces in the region, are designated as Important Cultural Properties of Iwate Prefecture. Situated on a terrace along the Kitakami River at the foot of Mt. Takadate, the site's scale and layout offer a profound sense of the former government's magnitude.
While the traces of history can be observed year-round, visiting from spring to autumn when the greenery is lush is highly recommended. In summer, you can enjoy a stroll through the park while feeling the refreshing breeze from the Kitakami River. During the bright daylight hours, the structures of the reconstructed moats, ponds, and roads are most clearly visible, making it an ideal time to understand the architectural styles of the era.
Beyond just viewing the scenery, visitors can deepen their understanding of archaeology. By observing the reconstructed moats, ponds, and roads, you can learn about the structural layout of a 12th-century administrative center. The site allows for a spatial understanding of how Hiraizumi functioned as a center of power through its topographical layout and artifact displays.
The site is surrounded by other significant landmarks related to the Oshu Fujiwara clan, including the UNESCO World Heritage site Chuson-ji Temple, Mt. Takadate, the Settai-kan Ruins, the Shiratori-kan Ruins, and the Chojagarahara Temple Ruins. Visiting these in conjunction provides a much deeper context to the history of the Hiraizumi region. The nearby Kitakami River scenery also adds to the historical atmosphere of the area.
As the park covers a wide area, we highly recommend wearing comfortable walking shoes. Please prepare for the weather by bringing a sunshade, hat, or rain gear.