Koya Castle (Chikuma)

From Jcastle.info
(Redirected from Chikuma Koya Castle)



Thought to have been constructed by the Tōhara Clan in the Muromachi Period, Koyajō was a branch castle of Tōnoharajō (Tounohara Castle). It was situated at much lower elevation at a strategic point at the mouth of the Aida River. Later Koyajō was guarded by the Kubo Clan, vassals of the Aida, who had their residence at the confluence of the Aida and Sai rivers.

Visit Notes

The ruins of Koya Castle are located in a park named for the castle mount, but unfortunately the park seems to be no longer maintained, and is covered in tall grass which has swallowed up benches and gazeboes. The main bailey is full of young trees. The ridge used to access the park is still clear, and climbing trenches can be discerned along it which created choke-points used in the castle's defence. Koyajō is twinned with Chausuyama Castle (Chikuma) as they're on hills on opposite sides of the small Aida River. The lack of Kanji for こや城 is interesting. Probably no one could agree on whether it was supposed to be 古屋城 or 小屋城.

  • Dobashi / Ridge / Tatebori

Castle Profile
English Name Koya Castle (Chikuma)
Japanese Name 筑摩こや城
Founder Tōhara Clan
Year Founded Muromachi Period
Castle Type Mountaintop
Castle Condition Ruins only
Historical Period Pre Edo Period
Artifacts Dobashi, Tatebori, Kuruwa
Features trenches, stone walls
Visitor Information
Access Akashina Station on the Shinonoi Line; 5 minute walk
Visitor Information Free; 24/7; Park
Time Required 30 minutes
Location Azumino, Nagano Prefecture
Coordinates 36° 21' 29.05" N, 137° 56' 4.99" E
Loading map...
Added to Jcastle 2020
Contributor ART
Admin Year Visited Viewer Contributed

(one vote)
Add your comment
Jcastle.info welcomes all comments. If you do not want to be anonymous, register or log in. It is free.