It produces no shadow, rises no higher than the surrounding soil, and would be entirely invisible to anyone walking past. What betrays it is the crop itself, which grows differently above buried features, revealing the outlines of things long since vanished beneath the plough.

This kind of site is known as a cropmark, a phenomenon where buried ditches or walls affect how plants above them develop. Soil that once filled a ditch retains more moisture than the compacted ground on either side, so crops rooted above it grow taller and stay greener longer, particularly during dry spells. The circle recorded here is consistent with a ring-ditch, a type of prehistoric monument typically interpreted as the remains of a burial mound whose central earthwork has been entirely ploughed away, leaving only the encircling ditch as a trace in the subsoil. The feature at Hollywood Great was identified on a Digital Globe orthoimage taken between 2011 and 2013, and confirmed on Google Earth imagery. The record was compiled by Caimin O\'Brien, drawing on details and aerial images provided by Ian Lennon, and uploaded to the record in July 2023.

Because the site exists only as a subsurface feature in an agricultural field, there is nothing to see at ground level. The aerial images associated with the record, credited to Ian Lennon, are the clearest way to appreciate the shape of the monument. Cropmarks of this kind are most legible from above during dry summers, when the differential growth between ditch-fill and surrounding soil is at its most pronounced. Anyone with an interest in aerial archaeology might find it worth examining the associated imagery rather than visiting the field itself, where the ground gives nothing away.