Found in Pevsner – North Somerset 1958. interesting fact,
He mentions that there was... l mile to the NW of Hautville Quoit, two similar stones in a field called Middle Ham.
Checking back to Burl in “Carnac to Callanish” possible grid.ref. at ST591 633, under Lower Tyning – 2 adjacent prostrate stones (now presumably lost).
Pevsner also goes on to describe the Stanton Drew stones as
“dolomitic conglomerates of different kinds, probably from near Harptree; sandstones of uncertain origin; and a jurassic limestone – probably Dundry stone.
The Harptree connection is interesting because Burl mentions two stones (now lost) at Shrowl Field, East Harptree called The Devils Quoits (what else).
How did these stones travel, by the river Chew maybe...
[Also see
pastscape.org/hob.aspx?hob_id=1097273 – TMA Ed.]