The monument includes a section of a late Iron Age linear boundary earthwork, or dyke, located within Walk Wood, to the east of Olivers and Little Olivers (two private houses) and some 3.5km south west of Colchester town centre. The earthwork is aligned north west-south east and extends ov4er a distance of some 150m. The structure of the dyke is best preserved near the centre of the earthwork where the bank measures approximately 11m in width and 1m high (perhaps one quarter of its original height). The ditch, on the southern side of the bank, is 7m wide and has been infilled to a depth of 0.5m. Excavations elsewhere in the system of dykes around Colchester have shown that the dyke ditches originally measures up to 4m in depth. The section of the dyke in Walk Wood is aligned with the course of Kidman’s Dyke, which has been recorded as a crop mark (enhanced crop growth caused by moisture trapped in the buried ditch) crossing the fields to the east of Olivers Lane. Kidman’s Dyke forms part of the boundary of the territorial oppidum of Camulodunum, positioned to surround the western side of the high status farmstead and associated field systems located between Olivers Lane and Stanway Green and generally known as ‘Gosbecks’. The earliest settlement at Gosbecks dates to around 50-25 BC and is thought to have been bounded by the Heath Farm Dyke, which follows a parallel course inside Kidman’s dyke before extending towards Lexden Dyke and the Iron Age industrial complex at Sheepen to the north east of Colchester town centre. Kidman’s Dyke is believed to have superseded or reinforced the southern n part of this boundary in the early years of the first century AD, either as part of the consolidation of the settlement or in response to the increasing threat of Roman invasion. All fences and fence posts are excluded from the scheduling, although the ground beneath them is included. <1>