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Tonomi Palisade

Tonomi Palisade (鳥海柵, Tonomi-no-saku) was an early Heian period jōsaku-style Japanese castle located in what is now the town of Kanegasaki in Isawa District, Iwate Prefecture in far northern Honshū, Japan. The site was proclaimed a National Historic Site of Japan in October 2013.[1]
Type:  jōsaku-style Japanese castle
Builder:  Abe no Yoritoki  

Tonomi Palisade  Click to go to Wikipedia