Stac an Armin with Boreray behind
Stac Lee in the middle ground and Hiorta (St Kilda) in the distance
© Stephen Hodges and licensed for reuse under the Creative Commons Licence
 
 

“The remains of a permanent settlement which could date back to the Iron Age has been uncovered on a remote Scottish island, according to archaeologists. It was previously thought Boreray in the St Kilda archipelago was only visited by islanders to hunt seabirds and gather wool from sheep. Archaeologists have now recorded an extensive agricultural field system and terraces for cultivating crops. They have also found an intact stone building buried under soil and turf.”

More here – http://www.bbc.co.uk/news/uk-scotland-highlands-islands-13753643

and here – http://heritage.caledonianmercury.com/2011/07/05/video-scanning-the-history-of-st-kilda/002809