01 / Harayama Dolmens
A tomb form with Korean Peninsula influence;its grave goods are all Jomon pottery.
A communal cemetery from the end of the Jomon period. A dolmen (支石墓) is a tomb whose stone chamber or pit is covered with supporting stones and a huge capstone, a form originally typical of the Korean Peninsula. The Agency for Cultural Affairs says about half have pottery under the capstone, all of it late Jomon. No Yayoi pottery was found at all.
- National Historic Site (Kita-Arima)
- Grave pottery: late Jomon
- No Yayoi pottery at all


