I approached the site from the minor road off the A417 to the east of Wantage.
Where the road takes a sharp turn to the left there is just about room to park.
On such a lovely day it was perhaps not surprising to see so many people out and about walking / cycling etc.
I headed west towards Wantage along the narrow tarmac path and soon came to the 'mound'. The 'mound' being right next to the path, the other side of a muddy ditch.
There is not much to see – just a 'mound' covered in bushes / trees / brambles etc.
It could be a Barrow (it looks the right shape) but there again what do I know?
Marked on the explorer 170 map as 'mound'. The site is to be found on a track leaving the east of Wantage. The site is much worn down and appears to have been used as BMX track for some time!
(added 14/02/2007). Musings on what it is: If marked as mound and not tumuli, then I suspect (and only that!) that it may be a moot point similar to scutchamer, except on a smaller scale, and NOT a burial site. Please bear in mind that I've been wrong before (I said Didcot FC would win the championship one day..... :-)