Kagenouma Kōgoishi

Kagenouma Kōgoishi is an ancient fortress in Fukuoka Prefecture featuring stone foundations and earthwork barriers. The site spreads across several strategic positions in the hilly terrain and shows typical characteristics of these early defensive systems.

This site was built during the Asuka period in the 6th or 7th century when Korea exerted strong military and architectural influence on Japan. That era marked a time of intense knowledge exchange between the two regions regarding advanced defensive techniques.

The stone structures show how Korean building techniques were adopted in Japan and influenced the way defensive positions were arranged at that time.

The site is best explored on foot since stone structures and earthworks are scattered across the terrain. Visitors should wear comfortable shoes and allow time to see the different positions positioned on the hillside.

The stone blocks show interesting variations in how they were worked, reflecting different building phases and repairs over the centuries. These traces allow visitors to observe how construction methods changed at the site over time.

Location: Iizuka

GPS coordinates: 33.67694,130.73444

Latest update: December 14, 2025 14:20