Château d'Idashiro, Japanese castle in Mikawa Province, Japan
Idashiro Castle is a Japanese fortress in Mikawa Province with stone walls and foundation ruins positioned on elevated terrain. The remains display defensive structures characteristic of 16th century fortifications.
The fortress was built in the early 1500s and served as a strategic military outpost controlling eastern Mikawa Province. It functioned as an important defensive position during the Sengoku period.
The castle layout demonstrates traditional Japanese military architecture with its strategic positioning and incorporation of natural terrain features for defense.
The ruins can be reached by following marked walking paths from the nearest parking area, with informational signs explaining the site. The paths are accessible and offer views across the grounds.
The stone foundation patterns reveal construction techniques that differ from other castles in the region due to adaptations for the local terrain. These building methods allowed the site to leverage natural slopes for improved defense.
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