長尾城

Nagao Castle is a castle site in Nagaodaichō featuring stone walls and earthwork fortifications positioned on elevated terrain. The remains show the basic structure of a medieval defensive installation with different levels built into the natural landscape.

The castle was built during Japan's feudal period as a defensive stronghold to control the region. It used the natural topography of the site for military purposes and was part of the broader feudal warrior systems of that era.

The remaining foundations demonstrate traditional Japanese castle construction methods that integrated wooden structures with stone reinforcements.

The site can be visited via marked walking trails that connect different areas of the ruins. The best time to visit is during dry weather, as the ground has several steep sections that can become slippery.

The castle location provides views of surrounding territories, reflecting medieval Japanese military strategy of controlling transportation routes.