One of the Kinki region's largest round mounds, on a hill above the Maruyama River in Asago City. The armor and weapons from its intact burial speak to Tajima's power in the 5th century. Maintained as a historic park with a panoramic summit view; Takeda Castle ruins are nearby.
Finds & research
Two unlooted wooden-coffin burials yielded four bronze mirrors, about 2,000 beads, two armor sets, roughly 85 iron swords and spears, and about 400 arrowheads. A principal group of 664 finds was designated a national Important Cultural Property in 2013.
Two views on the occupant
Archaeological view
A large two-tiered round mound measuring 90 by 78m and 18m high, built in the early 5th century. Its summit has two unlooted direct-burial wooden-coffin facilities; Burial 1 held an 8.7m composite box-shaped coffin. Combined finds from both burials include four bronze mirrors, about 2,000 beads, two armor sets, roughly 85 iron swords and spears, and about 400 arrowheads. A collared leather-laced triangular-plate cuirass was the first found outside the Kinai region, supporting an interpretation as a Tajima chieftain closely linked to the central polity.
Imperial Household Agency view
Not designated by the IHA. National Historic Site (2004) managed by Asago City.
Field notes
The mound is visitable as Chasuriyama Kofun Park. Finds are displayed at the Asago City Archaeology Center, Kodai Asago-kan. Check current parking and exhibition information.