The feature was not identified on the ground at all; it was only when an aerial photograph was examined during fieldwork in 2009 that the circular cropmark gave it away.

A ditch barrow is a burial monument, typically prehistoric, in which a low mound or flat central area is enclosed by a surrounding fosse, a cut ditch, rather than by a raised bank. The example at Breansha is modest in scale: the enclosed oval measures roughly 4.8 metres north to south and 5.3 metres east to west, with a fosse approximately 2.1 metres wide and only 12 centimetres deep where it can still be traced. That shallowness is partly explained by damage: an old land drain running northwest to southeast has cut across the south-southwest arc of the ditch, interrupting the circuit. A companion monument, a ring-barrow, sits just two metres to the northwest, suggesting this south-facing slope once held a small cluster of funerary features rather than a single isolated monument. The ground to the southwest remains poorly drained, which may reflect how the original topography influenced where these structures were placed, or simply how the landscape has settled around them over the centuries.