A designated national historical site.
The Remains of Hirasawa Kanga are the ruins of the Tsukuba County government buildings dating back to the Nara and Heian eras, more than a thousand years ago. The site was recognized to be of historical value in an archaeological survey conducted in 1975, and was designated “National Historical Site” in 1980.
In 1993 and 1994, a project to restore the site was undertaken, accompanied by a full-scale archaeological survey. The survey painted a picture of a once large-scale complex of elevated-floor warehouses, not usually found at ordinary archaeological sites. The warehouses, surrounded by a large ditch, are believed to have been used as a storage facility for county tax payments which, at the time, were made in rice and hemp. The few artifacts unearthed from the site include earthenware, tiles, ink stones and charred rice grains.
In order to fully utilize and protect this valuable cultural heritage for future generations, the City of Tsukuba has devoted six years, beginning in 1997, to bringing the ancient image of the site back to life.