Okunoyama Kofun

Gyōda-shi, Japan

Freely accessible

Public space — no opening hours to check.

Strollie cannot guarantee access — always check before you travel.

Located in Gyōda, Saitama Prefecture, the Okunoyama Kofun is a zenpō-kōen-fun (keyhole-shaped) burial mound erected around 600 CE during Japan's Kofun period. Originally designated a National Historic Site in 1938, it was elevated to Special National Historic Site status in 2020 as part of the Sakitama Kofun Cluster, recognizing its archaeological and historical significance within the Kantō region.