I quite often go riding up there, over the Blewbury Downs and onto the Ridgeway for a bit of a gallop, and in the 5 or 6 years that I have been going up and down the track, the massive wooden cross has been there. It is quite deeply offensive, but in the early days of getting lost on the tracks up there, it acted as a useful reference point.
There are a whole pile of smaller round barrows just up on the other side of the chalk pits that overlook Churn Knob, too. Next time I take a horse up there I'll try to get some photos of them, and I'll also check out the point at which the cross is erected on the Knob itself and report back. Looking forward to the County Arch's reply, T'chops....
J
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