Koyama Castle, Japanese castle in Yoshida, Japan.
Koyama Castle stands at an elevation of 30 meters on a hilltop near the Yuhigawa River, featuring stone walls and triple moats.
Built in the late 15th century, the castle changed hands multiple times between the Takeda and Tokugawa clans during intense territorial conflicts.
The castle grounds host annual cherry blossom viewing parties and cultural festivals, maintaining local traditions within the Shizuoka Prefecture.
The castle site, now part of Nomanji Mountain Park, includes a modern observation tower replica and a museum displaying artifacts from the Takeda period.
The castle features an uncommon triple moat system measuring 7, 9, and 10 meters in width, making it a rare example of medieval Japanese fortification.
Location: Yoshida
GPS coordinates: 34.77894,138.24706
Latest update: May 11, 2025 09:38
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