Usage patterns
古墳を発掘するto excavate a burial mound
The archaeologists excavated the burial mound in this area.
古墳から〈物〉が出土するfor an artifact to be unearthed from a burial mound
An old mirror was unearthed from this burial mound.
〈場所〉に古墳があるfor there to be a burial mound in a place
There are many ancient burial mounds in Nara Prefecture.