An imperial mausoleum at Shimaizumi, Habikino, Osaka Prefecture, managed by the Imperial Household Agency as the tomb of Emperor Yuryaku, the 21st emperor. An IHA survey report suggests that, at the southwest of the square mound within the precinct, the original mound may already have been lost.
Finds & research
Burial facilities and grave goods are not publicly detailed.
Official status & archaeological view
Official status
Managed by the IHA as the mausoleum of Emperor Yuryaku, the 21st emperor; the official form is a round tumulus (enkyu).
Attribution (jitei): the Imperial Household Agency's determination of whose tomb it manages — separate from heritage designation.
Archaeological view
Habikino City lists two separate mounds within the designated precinct: Shimaizumi Maruyama, a round mound 75 m in diameter, and Takawashi Hiratsuka, a square mound 50 m on each side. The 75 m figure given above is the diameter of Maruyama, not the combined length of the mausoleum precinct.
Field notes
Per the IHA, it is about a 10-minute walk from Kintetsu Takawashi Station, and worship is generally possible year-round from 8:30 to 17:00. The goryoin (mausoleum seal) is kept at the Furuichi Mausolea Office in Habikino, Osaka, where visitors can use it free of charge (reception 8:30–17:00; staff may be unavailable on weekends, holidays, 29 Dec–3 Jan and some other days). Nearby imperial mausoleum: Oka Misanzai Kofun (Mausoleum of Emperor Chuai)↗.