Chichibu Geopark

Basic points

This is a cave in a rock wall made of limestone, and the cave was formed through erosion caused by water flowing from Arakawa River about 50,000 years ago.

People migrated and lived here since the Jomon period (around 8,000 B.C. to 300 B.C.), and the location is said to have been used as a habitat as well as a hunting camp. Many earthenware and bones of animals have been excavated here.