Ancient Tap O' Noth hillfort in Aberdeenshire one of 'largest ever'

Archaeologists say up to 4,000 people may have lived in more than 800 huts perched high on the Tap O' Noth.

Ancient Tap O' Noth hillfort in Aberdeenshire one of 'largest ever'
Archaeologists say up to 4,000 people may have lived in more than 800 huts perched high on the Tap O' Noth.
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