Bodmin Moor with 12 stone Circles and over 90 ridge topped Cairns provides a superb location to investigate mathematically, whether the Circles and Cairns were random; or whether there was a deliberate astronomical construction in their relative placements.

Christian O’Brien in his Megalithic Odyssey (1984) set out to prove that there is an archaeo-atronomical site in Bodmin Moor, specifically an astronimical temple complex (c. 2500 BC).

Brian's map shows this supposed geometric link of the stones:

His work however never recieved any mainstream support and is now just an obscure text. You can find it on Amazon for about £10-20.