Hob,
I think you will find the mound near White Coppice is the "Round Loaf"
check out TMA page :- http://www.themodernantiquarian.com/site/1684
Hope this helps,
RIV
And there's loads just over the hill (to the south).
Here's one of them ...
http://www.themodernantiquarian.com/post/12722