Blackhills House

Scotland's National Record of the Historic Environment records Blackhills House as Cup Marked Stone (neolithic) - (bronze Age), Pictish Symbol Stone (pictish). The official map says its point is accurate as follows: NGR given to the nearest 1m. The record does not by itself mean that the public may enter the place.

Cup marked stones are typically associated with the Neolithic or Bronze Age periods, often linked to ritual or ceremonial use. Pictish symbol stones, dating to the Early Medieval period, may indicate territorial markers or memorials, though the meaning of the symbols remains largely undeciphered.