Evidence for a Neolithic Grid System, and a geodetic intent in the siting of Stonehenge
by Robin Heath
A GEODETIC GRID CONNECTING THREE MONUMENTS
The north-south alignment between Stonehenge and Arbor Low - ‘The Stonehenge of the North’ - was originally described in Appendix Four of The Measure of Albion 1.
Arbor Low (53° 10’ 08”; 1° 45’ 42”) is a henge monument located 138 miles further north of Stonehenge in the Derbyshire Peak District. A fortunate connection made while surveying two sites in North Wales subsequently led to a breakthrough in understanding the extent and nature of the ‘geodetic grid’ described in this report. The two burial chambers of Bryn Celli Ddu and Barclodiad y Gawres lie on an east-west alignment to each other, and projected eastwards (i.e. on the same latitude) this line eventually reaches Arbor Low.
Eleven miles apart, Barclodiad (53° 12’ 25.14”; 4° 30’ 10.1”) is located due west of Bryn Celli Ddu (53° 12’ 27.74”; 4° 14’ 5”). The latitude difference is just 50m in 17Km (160 feet in 11 miles). Analysis on the locations of these three henge sites - Bryn Celli Ddu, Arbor Low and Stonehenge – revealed that they are located on the three corners or apices of an accurate 3:4:5 pythagorean triangle, as illustrated overleaf.
To complete the implied 4:3 rectangle, it is necessary to define a fourth point directly westwards and at distance ‘3 units’ from Stonehenge. The location is marked by a burial chamber on the headland at Morte Point in North Devon (illustrated in pdf, figure 2(a) and (b)).
The projected line running westwards from Stonehenge to this point is coincident with that line which provides the base line for the ‘12’ side of the
5:12:13 triangle to Lundy. The lengths of these two coincidental lines form the ratio 5:6 to each other. The unit of length employed here is suggested as 30 Geodetic Units (GU)* each of 3 Royal Miles 5, once more making the triangle’s dimensions numerically resonant to its geometry, at 30:40:50 GU (see appendix three).
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