The Datum stone triangular set up with the Maen Llia/henge/cairn/working platform isosceles triangle superimposed.
All these are visible on Google Earth but you may need to toggle between the different dates to find them.
Image credit: cerrig
The Datum stone triangular set up with the Maen Llia/henge/cairn/working platform isosceles triangle superimposed.
All these are visible on Google Earth but you may need to toggle between the different dates to find them.