御所ヶ谷神籠石

Goshogadani Kanegoshi is an ancient stone fortification situated on sloping terrain near Mount Hōman in Fukuoka Prefecture. The site consists of massive defensive walls built from large granite blocks fitted together without mortar, arranged across multiple sections of the hillside.

This fortification was constructed during the 7th century as one of Japan's earliest military installations. Its construction demonstrates the beginnings of Japanese defensive engineering before other architectural styles became dominant.

The fortress design reflects traditional Japanese defensive architecture, incorporating natural terrain features and precisely arranged stones for structural integrity.

The site is accessible on foot through well-marked hiking trails that begin at the base of Mount Hōman. Visitors should wear sturdy footwear and allow ample time to explore the various wall sections at a comfortable pace.

The fortress walls contain granite stones weighing up to several tons, positioned perfectly to maintain stability for over 1300 years.