Bute, Birgidale Butt

Scotland's National Record of the Historic Environment records Bute, Birgidale Butt as Marker Cairn (period Unassigned), Triangulation Pillar (19th Century) - (20th Century). 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.

Marker cairn, likely prehistoric in origin, with a 19th- to 20th-century triangulation pillar added later. Its significance lies in its use as both an ancient landscape marker and a later surveying reference point.