Tap o Noth – mysterious hill-fort of the Picts

Away out in the bare knuckle of Buchan in north-east Scotland on the coastal plain, it’s just plain bleak and also cultivated intensely. Further up into the hinterland of Aberdeenshire, mainly towards the valley of the Rivers Dee and Don, it’s almost Highland: bigger hills, wilder woods, higher hilltops. South of the town of Huntly,…