If you look at the two straight lines that the monuments of the Plateau sit on, and realise that six of the monuments are identical then that is the amazing accuracy - landscape engineering over 20 miles and that's without Newton Kyme, which extends the Catterick-Boroughbridge line by another twenty miles and is another identical henge.

The whole thing is a bit odd in the centext of the period and one wonders if there are more monuments to be found. For example, there is an unknown earthwork at Kirklington and several similar size circular features to the south.