It was examined by Haakon Shetelig in 1902 .
It was contained an approximately 15 - metre ( 49 ft ) long boat with remains of a man 's grave from the 10th century .
It was examined by Haakon Shetelig in 1902 , and contained an approximately 15 - metre ( 49 ft ) long boat with remains of a man 's grave from the 10th century .