These are cropmarks, the subtle discolourations and variations in plant growth that appear when aerial photography catches the right angle of light at the right moment in a dry summer. Where soil is disturbed by old ditches or walls, crops grow differently, and the land briefly reveals what has long since disappeared from view.

What the cropmarks in this particular field describe is a field system, a network of boundaries and divisions that once organised the working landscape here. An irregular line runs approximately north to south, meeting the outer fosse, or ditch, of a nearby circular enclosure to the south. That enclosure, a trivallate ringfort defined by three concentric ditches, lies just to the south-west, and the field system appears to abut it directly, suggesting the two features were in some relationship with one another, whether contemporary or successive. The north-south line is bisected by a short, slightly curving line running north-east to south-west before it disappears into a modern field fence to the north. Fainter, narrower, and straighter lines are also present in the same field, one cutting across the main line, another set further to the west. Together they sketch the ghost of a divided and managed agricultural landscape, the kind of organisation that would have accompanied settled habitation, most likely in the early medieval period given the proximity to the ringfort.