Georadar reveals 15 burial mounds

[Still Waters 52,218]

November 2019 found Arne Anderson Stamnes, an archaeologist at the NTNU University Museum, methodically wending his way back and forth across the fields just east of the campsite in Bodø municipality. Behind the four-wheeler he's driving, he's towing a ground penetrating radar device.

GPR sends electromagnetic signals down into the subsurface, and some of these signals are reflected back when they encounter structures deeper down in the ground. This is how archaeologists obtain a kind of X-ray of objects two to three meters below the surface.

"Our findings included traces of 15 burial mounds, and one of them appears to contain a boat grave. Both the size and design of the burial mounds are typical of the period 650 to 950 CE—that is, what we call the Merovingian Period and Viking Age," says Stamnes.

https://phys.org/news/2021-01-georadar-reveals-burial-mounds-viking.html