The site was a fortified Tongan settlement called Kolo Nui and the whole fortress is surrounded by a strong defensive wall build of basalt with several entrances. Inside the fort there are a few preserved buildings and structures, lawns and the central elevated platform called Talietumu (a Marae or Mala´e, "Sacred Place"). The platform is of circular prolonged shape upon a circular stockade base. Raised walkways paved in stone start from the mala'e and radiate outward from within the fort.
This map has better detail in Google Earth than Google Maps
By WacoKidd110 @ 2012-03-29 09:16:12