Statistical proof isn't actual proof. This is maybe where Thom went astray. The proof is whether the moon rises from behind a sacred hill (Bull Hill for the Thurstones) on a specific lunar standstill. That would be captured by a photograph rather than a theodolite. I'm going to try for a sunrise first of all.

The unique nature of the Smithills stone rows is their disposition - how they are sited in relation to each other and how they are within the valley. I'm less interested in proving them than in restoring the northern pair.