丸岩城

Maruyama Castle stands on a hilltop with natural slopes and strategic defensive structures including stone walls, moats, and gates surrounding the central keep.

The castle served as a military stronghold during the Sengoku period, utilizing traditional Japanese fortification methods before the architectural changes introduced by Oda Nobunaga.

The castle design reflects medieval Japanese military engineering with earthen ramparts, wooden watchtowers, and defensive gates that controlled access to different sections.

Visitors can explore the castle ruins through marked paths that lead to the main bailey area, where foundation stones and defensive trenches remain visible.

The castle incorporates multiple small entrances called koguchi, which were designed to slow down potential attackers by forcing them through narrow, winding paths.

GPS coordinates: 36.52775,138.66258

Latest update: March 7, 2025 23:04