Have just seen this on part three of the current, third series of Secret Britain on BBC 1. Sorry, can't do link. Circle discovered in 2007 after burning. One or two stones were visible, the fieldwalker discoverer prodded away and then revealed the rest. Well done him. Thirty stones in all, 32m diameter. Good aerial photography in the programme. There's an entry on TMP already, but site yet, it seems, to be added to TMA. Just goes to show that there is still fine sizeable stuff to be found, and gives encouragement to people such as myself who go out into the wilds stomping to and fro looking.