Hi J,
I did readsomewhere that it could have been part of a circle. The Megalithic Portal also lists it as a circle but gives no further clues.

http://www.megalithic.co.uk/article.php?sid=136

I just just spent a few days in Dorset, but due to bad weather didn't get out much. I spent a hour in Dorchester museum (wow!) and managed to get across the Poole ferry to see the Agglestone. Got very wet and muddy but well worth it, missed the puckstone, looks massive on the map but couldn't see it from the big one. I see from your posts you were there also, hope your map reading was better than mine. Took a couple of wrong turns and ended up in barbed wire, ditches etc...

Cheers from phil

I can go one better.....found a stone circle mentioned in....

"The Ancient Monuments of Dorset a definitive list" by N.H. Field and J. Bugler

Mayne Stone Circle at West Knighton SY723870

http://www.themodernantiquarian.com/browse.php?site_id=3054

After adding the site to TMA I found that this Dorset (non) circle has no stones, not one bloody stone!...........

Any idea what and when caused the demise of this circle?

phil