The round portion of the tumulus has a height of six meters and was covered in fukiishi.

[2] Currently, the site of the moat is under rice paddies and the tumulus is surrounded by farmland.

The site was excavated in 1992, and in 2008 by ground-penetrating radar.The grave goods discovered, mostly pieces of wood and metal, included items of Korean and Chinese origin, and are displayed at the Wakasa Museum of History and Culture.

The name of the person interred is unknown; however from the name of the nearby hill (Zenbuyama, 膳部山), it mostly likely corresponds to the grave of a head of the Kashiwade clan (膳氏), who are recorded in the Kojiki and Nihon Shoki as having served as Kuni no miyatsuko of Wakasa Province since the time of the legendary Emperor Kōgen.

[2] The tumulus is about 30 minutes on foot from Kaminaka Station on the JR West Obama Line.