Château d'Oshima

The castle rises against the mountains with stone foundations supporting wooden structures and multiple defensive layers incorporating natural terrain features.

The castle structure follows architectural principles established during the Azuchi-Momoyama period when Japanese fortifications merged military requirements with residential functions.

The castle exemplifies traditional Japanese military architecture with its stone base, wooden frameworks, and strategic positioning that integrates natural landscape elements.

Visitors can reach the castle site via local transportation from Nagano city, with guided tours available during regular opening hours from spring through autumn.

The castle maintains original defensive features including narrow passages between walls and elevated observation points designed for monitoring approaching forces.

GPS coordinates: 35.57606,137.91714

Latest update: April 2, 2025 22:42