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History
Although it is not known when Yokoyamajō was built or by whom, it seems quite likely that it was part of the network of fortifications protecting the uppermost part of the Ina Valley, which was Suwa Clan territory. In that case it was a satellite fortification of Ryūgasakijō. See: Ina Ryuugasaki Castle.
Visit Notes
There used to be a fortification ruin here but it was completely flattened by the development of a housing estate called Oh’ishidaira, and now nothing remains.
| Castle Profile | |
|---|---|
| English Name | Ina Yokoyama Castle |
| Japanese Name | 伊那横山城 |
| Founder | Suwa Clan |
| Year Founded | Medieval Era |
| Castle Type | Mountaintop |
| Castle Condition | Ruins only |
| Historical Period | Pre Edo Period |
| Features | |
| Visitor Information | |
| Access | Tatsuno Station on the Chūō Main Line and Iida Line; 25 minute walk |
| Visitor Information | Access Limited |
| Time Required | 10 minutes |
| Location | Tatsuno, Nagano Prefecture |
| Coordinates | 35° 58' 49.87" N, 138° 0' 31.18" E |
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| Admin | |
| Added to Jcastle | 2022 |
| Contributor | ART |
| Admin Year Visited | Viewer Contributed |
| Friends of JCastle | |
| Oshiro Tabi Nikki | |
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