Yahatayama Fort

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Yahatayama-toride was a small, simple fortification built and operated by the Obata Clan. Alternative historical names for the site included Nakajō and Kaminojō or Uenojō (上ノ城). This latter appellation is very similar to nearby Kouzuke Ueno Castle (上野城), which may have lead to confusion between the two sites (for example, when Takeda Shingen is recorded having attacked the area in 1563).

Visit Notes

Yahatayama-toride is a comely fort ruin very easy to appreciate from below because the trees on the hill, which is about 50m high, have been cleared back. The site is now a park surrounded by vinyards. Ruins include kuruwa (a bailey), dorui (earthen ramparts) and kirigishi (terrain sculpted into steep embankments). The western side faces a natural slope, but the other sides have been cut into formiddable embankments about 6m high. The dorui segments are most prominent at either end of the single main enclosure, which is 60m north to south and 30m east to west. The northern dorui portion may have hosted a yagura (turret). Yahatayama-toride is twinned with Nagaune Fort, located on lower elevation.

  • Castle Mount

Castle Profile
English Name Yahatayama Fort
Japanese Name 八幡山砦
Alternate Names 中城・上城
Founder Obata Clan
Year Founded Medieval Era
Castle Type Mountaintop
Castle Condition Ruins only
Historical Period Pre Edo Period
Artifacts Dorui, Yaguradai, Kirigishi, Kuruwa
Visitor Information
Access Joushuu Fukushima Station on the Joushin Dentetsu Line; 35 minute walk or 15 minute cycle (free rental bicycle available at the station)
Visitor Information Free; 24/7; Park
Time Required 20 minutes
Location Kanra, Gunma Prefecture
Coordinates 36° 14' 3.95" N, 138° 55' 17.83" E
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Added to Jcastle 2021
Contributor ART
Admin Year Visited Viewer Contributed

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