[1] The Yanaida Nunōyama Kofun is located in the northwest part of Toyama prefecture, near the eastern base of Noto Peninsula and approximately two kilometers from the shore of Toyama Bay, at an elevation of approximately 25 meters above sea level.

No haniwa or fukiishi were discovered , and the tumulus was found to have been robbed at some time in antiquity.

The time of its construction is estimated to date from the end of the 3rd to the late 4th century, and there is no indication of who was buried in this tomb.

From its size and its location near an ancient port, it has been speculated that this was the tomb of a powerful chief with connections through trade to both polities.

[2] The area is now open to the public as part of an archaeological park with a small museum.