Ainuta Fort

History

The mound of Ainuta is a mysterious segment of piled earth. Its origins are unknown but it is widely held to be the remnant of a fort, Ainuta-rui. A contending theory is that it was a flood embankment (the Shio River is nearby), but I find this strange as the surviving segment leads away from the river, rather than parallel. It we are viewing a cross-section of the embankment instead, then it was fairly wide and flat for a flood defence.

Visit Notes

Ainuta-rui is a fortified residence site in Fujii Township, Nirasaki Municipality. The ruins of Ainuta-rui consists of a segment of dorui (earthen ramparts) which are thought to have once ensconced a medieval residence, though who built it is unknown. The site is now fields and the embankment, which is quite wide and sloping, hosts an orchard and a bamboo patch.

Gallery

Dorui

Castle Profile
English Name	Ainuta Fort
Japanese Name	相垈塁
Founder	Unknown
Year Founded	Unknown
Castle Type	Fortified Manor
Castle Condition	Ruins only
Historical Period	Pre Edo Period
Artifacts	Dorui
Features
Visitor Information
Access	Nirasaki Station on the Chūō Main Line; 18 minute walk
Visitor Information	24/7 free; fields
Time Required	10 minutes
Location	Nirasaki, Yamanashi Prefecture
Coordinates	35° 43' 17.15" N, 138° 27' 5.94" E
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Admin
Added to Jcastle	2022
Contributor	ART
Admin Year Visited	Viewer Contributed
Friends of JCastle
Oshiro Tabi Nikki
Jōkakuzukan
Jōkaku Hōrōki

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