Many ancient tombs and funerary goods of varying size, and holding significant archaeological value were found in this area as well as the surrounding regions of Ayabe City, Maizuru City, etc.
綾部市や舞鶴市など周辺の地域を含め、この地では考古学上貴重な資料ともなる大小さまざまな多数の古墳や副葬品などが出土している。