Soya Shell Midden

Soya Shell Midden - Credit: Wikimedia Commons

The is an archaeological site in the Soya neighborhood of the city of Ichikawa, Chiba Prefecture, in the Kantō region of Japan containing a Jōmon period shell midden and settlement ruin. It was designated a National Historic Site of Japan in 1979. The shell mound was formed in the latter half of the Jōmon period, about 4000 to 3000 years ago. Read more on Wikipedia

type: ancient site
date from: Jōmon period

Source: en.wikipedia.org