A survey was conducted from 1995 to 1999, along with the development of the site of the City General Health and Welfare Center, Kuhara Takigaushima Site (Cuba Takiga Chestnut Cure). The main remains include 105 pit-type houses during the Kofun Period to the latter period, medieval earth wells, wells, well-drilled pillar buildings and others. The hill where the ruins are located is divided from the saddle, the south is the grave area spreading the Kuhara Sawada ancient tomb, the northern side is divided from the residential area of ​​the Kuhara Takiga Tokura ruins reported this time. The 72th residence of the early 5th century where the pottery pottery was excavated, the 64th house in the first half of the 5th century, where the early Suebu pottery was excavated, attracts attention.