Oniba Castle

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Onibajou (3).JPG


The origins of Onibajō are not clear, which is a shame because it has a cool name ('Demon Place'), but it was controlled by a branch of the Suwa Clan called the Yagasaki in the Sengoku period. In the middle 16th century Onibajō was subjugated by Takeda Shingen.

Visit Notes

There is a nature trail leading all the way from Ueharajō to Onibajō, making for a pleasant stroll between the two sites. Onibajō is a small site consisting of trenches, embankments and bailey ruins. One can enter from either the main road up a long stairway, or from the top of a residential area called Jōyama. Dorui (embankments) surround the shukuruwa (main bailey), and reach across the mountain ridge where one might otherwise expect to see more trenches. A large trench splits the castle roughly in two. The ninokuruwa (second bailey) is now the site of a pylon. Obi-kuruwa (ring baileys) wrap around the first and second enclosures. A third bailey sits between ramparts of piled earth, and has terraced sub-baileys below on either side.


Castle Profile
English Name Oniba Castle
Japanese Name 鬼場城
Alternate Names Yaǵasakijō (矢ヶ崎城)
Founder Yagasaki Clan
Year Founded Sengoku Period
Castle Type Mountaintop
Castle Condition Ruins only
Historical Period Pre Edo Period
Features trenches
Visitor Information
Access Chino Station on the Chuo East Line; walk 35 minutes
Visitor Information 24/7 free
Time Required 45 minutes
Location Chino, Nagano Prefecture
Coordinates 36° 0' 17.32" N, 138° 10' 23.63" E
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Added to Jcastle 2020
Contributor ART
Admin Year Visited Viewer Contributed
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