Ness of Brodgar Archaeological Excavations, Orkney, photo by Nicki MacRae.

A detail photo in black and white of an archaeological dig site, showing a square pillar of stacked flat rocks rising from the dark bare earth bottom of a trench base. Black plastic sheeting and scattered rocks sit round it.

Ness of Brodgar Archaeological Excavations, Orkney, photo by Nicki MacRae.