Kosegasawa Cave

Kosegasawa Cave - Credit: Wikimedia Commons

The is an archaeological site consisting of a Jōmon period cave dwelling in what is now part of the town of Aga, Niigata Prefecture in the Hokuriku region of Japan. The cave was designated a National Historic Site of Japan in 1982. Read more on Wikipedia

type: ancient site
date from: Jōmon period

Source: en.wikipedia.org