Ancient CivilizationsWhy Was An Artificial Island Older Than Stonehenge Built In Loch Bhorgastail On The Isle Of Lewis? Posted on June 15, 2026 by Administrator Why was an artificial island, predating even Stonehenge, constructed in Loch Bhorgastail on the Isle of Lewis? What purpose did it serve for the people who invested so much effort to build it, and what does it reveal about their beliefs, needs, and relationship with the landscape around them?