The thing mound 

Is it a grave?

The large mound north of the royal mounds may be a grave, but nothing is known about its age or content.

The flat top indicates other functions than purely burial.

Other large mounds southwest of the West mound are another four large burial mounds and south of these is a burial ground once containing hundreds of small mounds or barrows.

Unfortunately nothing is known about the age of these monuments, some can date from the 5th century, others from the Viking Age.

Read on about Boat graves