The tumulus was designated a National Historic Site in 1938 and re-designated as a Special National Historic Site of Japan in 2020 as part of the Sakitama Kofun Cluster.

As with the other keyhole-shaped tumuli in this cluster, the Kawarazuka Kofun had a rectangular double moat.

A large number of haniwa have beenexcavated from this tumulus, including haniwa shaped as houses, waterfowl, men with shields, boys playing musical instruments leading horses, and girls with necklaces, from which a glimpse of the clothes, hairstyles, and festivals of the Kofun period can be deduced.

The tumulus has been reconstructed, and is located immediately in front of the Saitama Prefectural Museum of the Sakitama Ancient Burial Mounds (埼玉県立さきたま史跡の博物館, Saitama Kenritsu Sakitama Shiseki no Hakubutsukan) .

Media related to Kawarazuka Kofun at Wikimedia Commons