Stonehenge – an original plan is revealed.

Three Circles set out Stonehenge.

Two pairs of trilithons are set using circles identical in size to that of the sarsen circle.

Centre-points and radius length are essential information required when setting out arcs. Stonehenge’s designer  made a plan. The builders used the plan to physically locate the trilithon arcs.

The location of the red-circle centre-points is extremely significant. The relationship of these points to the Sarsen and Blue-stone circles reveals the unit of measurement used to set out Stonehenge,  … and why it was so important. 

Intersecting arcs of the red circles hold two triangles.

The arcs cut the ‘solstice axis’ on the Blue-stone circle at C, and Sarsen circle at A. Within the arcs are two perfect or equilateral triangles, (FFA and FFC)

On the axis are seven fixed points:

  • four are where the axis intersects the sarsen (A,B) and blue-stone circles (2 x C),
  • two are the triangle centres (2 x D),
  • and Stonehenge’s centre-point, (E).

Below is how Stonehenge was set out prior to being constructed. This original unit of measurement I’ve called a Baunt (Bronze- Age UNiT). 1 baunt is 1.037* metres, about a pace.

*Based on a paper calculation.

Stonehenge plan, illustrating how the stones were set using simple geometry with the original unit of measurement (baunts).

An earlier plan, first published 31.12.2015, illustrates how the trilithons were located on the arcs using these 3-baunt marks.

Plans based on a survey by Johnson et al, 2008.