Negishi Kanga ruins
archaeological site
Negishi Kanga ruins (根岸官衙遺跡群, Negishi kanga iseki-gun) is an archaeological site with the ruins of a Heian period local government administrative complex and Buddhist temple, built over a Jōmon period settlement, located in what is now part of the city of Iwaki, Fukushima prefecture in the southern Tōhoku region of northern Honshu, Japan. It has been protected by the central government as a National Historic Site since 2005.
Background
In the Nara period, after the establishment of a centralized government under the Ritsuryō system, five districts of southern Mutsu Province: Iwaki (石城), Shineha (標葉), Namekata (行方), Uta (宇太), Watari (曰理) and one district of Hitachi Province, Kikuta (菊多) were joined together to form the new province of Iwaki (石城国) in 718. The province only lasted for a short period, and was absorbed back into Mutsu in 720 or 724. This site is believed to have been the location of the civil administration of Iwaki Province, and subsequently of Iwaki District within Mutsu Province in the early Heian period
Description
The Negishi ruins are located in a hilly area very close to the Pacific Ocean to the east. Within the borders of the National Historic Site designation is the site of a hilltop Jōmon period settlement with numerous pit dwellings. To the west of this settlement (and outside the borders of the National Historic Site) is a shell midden contemporary with the settlement, from which numerous shards of Jōmon period pottery, tools and other artifacts have been recovered. The site of the later regional government administrative complex is located on flat land to the northeast of this settlement. The site measures 600 meters north-south and 300 meters east-west, and contained a large administrative building, flanked by buildings in symmetrical positions in the east and west, forming a “U”-shape. The compound was protected by a wooden palisade.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 20, 2026. The linked authority identifier is Q60763923. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2005.
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This entry incorporates text from “Negishi Kanga ruins” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.