Tobayama Cave

The Tobayama Cave, located in Ueda, Nagano, Japan, is a significant archaeological site featuring a natural cave utilized for habitation and burial purposes across multiple historical periods. From the late Jōmon period, through the Yayoi, and into the Kofun period, the cave served as a dwelling space and later as a tomb. Excavations revealed a paved floor and human remains, some of which were found in unique strata containing crushed bones, a rare occurrence on Honshu. The site yielded numerous grave goods, including iron weapons, horse fittings, copper bracelets, and Sue ware pottery, reflecting the cultural practices of the time. The cave’s long-term usage highlights the evolution of local funerary customs and the interaction of various cultural influences in ancient Japan.