nature, and the discovery at the site of jade and flint axes. Subsequent excavations by Grimes in 1957 re-interpreted this feature to be an earlier Iron Age enclosure dating to approximately 250 BC, with Iron Age pottery found within the primary fill. It was therefore speculated that the visible interruptions have been made by post Medieval ploughing. Faint traces of a remnant bank survive along the north and west sections, and an adjoining ditch has a causewayed nature, and survives in short segments varying between in length. There is also evidence of a single original west facing entrance currently discernible as a wide gap in the enclosure boundary. The straight southeastern side of the enclosure is formed by a ditch that is truncated by the main hillfort boundary, and this again has been interpreted as further evidence that the linear ditch and contiguous enclosure pre-date the main hillfort. However, more recent aerial and photographic surveys have meant that W.F.Grimes' re-interpretation may have been in error. A detailed survey undertaken between 1994 and 1995 by the field survey teams of the Royal Commission on the Historical Monuments of England have suggested that the feature is in fact more likely to be a Neolithic causewayed enclosure as originally interpreted by E.C.Curwen. One possible explanation for the apparent confusion in dating this feature is that Grimes may not have excavated fully to the primary fill. The surveys suggest that the feature clearly has causeways, and low winter sun photography shows that the enclosure continues beyond what was previously believed to be its eastern edge, to form a sub-circular rather than D-shaped enclosure feature. The 'crop mark' visible on aerial photographs shows a continuation of the curve to the southeast of the straight side, thus roughly completing a circle. This feature has also been interpreted as a possible base for a palisaded enclosure. There is also a probable link between the likely neolithic causewayed enclosure and the surrounding barrow cemetery, which would have followed later. Later features There is also a Romano-British or later ditch, running east to west, which turns south sharply at the southwest corner of the hillfort, and which partly overlies the earlier Iron Age earthworks. The main ramparts appear to have been built in the 1st century BC. Construction phases The archaeological evidence suggests that Scratchbury Camp was built in at least two but perhaps three phases. It is generally