Kogasaka Stone Age Site

Kogasaka Stone Age Site is an archaeological location with three middle Jomon period settlement traces resting on a low river terrace near the Onda River. The excavations uncovered dwelling pits and activity areas that date back thousands of years.

The site was discovered in 1918 and first revealed dwelling remains with stone-flagged floors in the Kanto region. This finding helped researchers understand how ancient communities built and arranged their living spaces.

The excavated dwellings reveal how people organized their daily lives and built their homes during the middle Jomon period. Visitors can observe the practical design of ancient structures and the objects inhabitants used for survival.

The location sits about 13 minutes walk from Machida Station, accessible via the Odakyu Electric Railway. The walk is straightforward and passes through the neighborhood on flat terrain.

One preserved dwelling sits under a glass cover, allowing close observation of the ancient structure and its construction details. This shelter keeps the fragile remains protected while visitors examine how residents designed their homes.

GPS coordinates: 35.54528,139.45722

Latest update: December 14, 2025 18:20