The table in Part III 4.42 of Plummet's report describes the secondary structures. The text mentions the possibilities of certain depressions, poorly defined, being post holes. The depressions were more likely to be found in the berm and in the extremities of the hemispheres (at the end). Unfortunately, Plummet wrote that the nature of the posts was not defined and the imperfections did not permit a serious hypothesis about the type of coverage.