These earthworks, typically consisting of a raised bank and ditch enclosing a roughly circular area, served as farmsteads for free farmers and minor lords, probably between the fifth and twelfth centuries. At Dawstown, the enclosing bank has been so thoroughly levelled by centuries of agricultural work that it barely registers as a feature in the landscape, yet it persists, a faint circular swell roughly 37 metres across.

What makes this particular site quietly interesting is the way old maps track its gradual disappearance. The Ordnance Survey six-inch map of 1842 shows it clearly, rendered with hachures, the short parallel lines surveyors used to indicate an earthen bank or slope, enclosing a circle of around 35 metres in diameter. The 1904 edition records much the same picture. By 1937, however, the cartographers had switched to a broken line, suggesting the feature was already becoming difficult to read on the ground, and the diameter they recorded had crept up to around 40 metres, possibly reflecting how a spreading, eroding bank blurs its own boundary. The surviving earthwork today measures 37 metres across, sitting somewhere between those earlier readings, a quietly legible record of slow loss.