Nationally designated historic site Izawa Castle Ruins

Oshu City

Southern Iwate

Isawa Castle, built by Sakanoue Tamuramaro in Enryaku 21 (802), is a square castle surrounded by a 675-meter-long earthen wall, and many government offices, including the government office, were located within the castle. .
It has been designated as a national historic site, and as excavations progress, valuable materials have been discovered, including wooden tablets, earthenware with letters inscribed on them, as well as lacquer paper documents containing the history of the castle and the soldiers who worked at the castle.

Sakuragawa, Mizusawa Ward, Oshu City, Iwate Prefecture 023-0003
Contact name: Oshu City Buried Cultural Properties Research Center

Phone number: 0197-22-4400

FAX number: 0197-22-4600

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