It is located on a slope at an elevation of 30 meters, in the fan-shaped land at the western foot of the Ikoma Mountains, which runs north and south as a watershed between Yamato and Kawachi Provinces.

Since it was built along the contour lines of a natural slope, the surrounding moat was divided into two embankments on the south and north sides, making it a rare structure with different water levels in the east and west.

At the top of the posterior circle, there are three burial chambers of different lengths, of which the remains of a clay-covered wooden coffin was confirmed in the west side.

Judging from these grave goods and the construction method, the tumulus was compiled in the middle Kofun period, or around the 5th century.

During the Asuka period a Buddhist temple called Shingo-ji was constructed on the western side of the tumulus.