Have a look at the last image filed on this site, under the name 'Grey Yauds'. (Use the search box above). The centre of it is 54N50' 16.8" , 2W36' 42.8" . I agree with you over the value of these public domain pictures - but all I can find are prehistoric remains, roman remains and illegal shooters' roads. I found a really clear circle on one view, but there's absolutely nothing on the ground - in fact, that's happened twice. I attributed both times to the artefacts made in the colour compositing process!
And a word for Nigel - there's plenty of unplanned roads in the Cumbrian fells - would you complain ?
