In our searches we have made a fundamental mistake - assuming that the Sanna road followed the same route in MEM MacDonald's day as it does today. It doesn't.
There is a remaining problem: MEM Donaldson states that the burial cairns are 'in a hollow' while Donald MacDiarmid states that they are 'on a knoll'.
With all this in mind, the Diary, having apparently been searching too close to Creag an Airgid, set out once again to find the cairns.
Crossing the wall and moving south between it and the existing Sanna road, we found an area of bracken....