From Hillforts Of The Wylye And Avon Valleys, by the Hillfort Study Group, Salisbury, April 1984:
ST 960440
This is a somewhat enigmatic site, due partly to its nature and relationship to other nearby sites and partly to the total lack of information on its date. It therefore constitutes an ideal site on which the Hillfort Study Group can exercise its combined talents.
It consists of a sub-rectangular area enclosed by a single bank and ditch, the area enclosed being some 1.5 hectares. A simple entrance on the southern side may be original, while the break on the west is doubtless modern.
It lies on the lower slopes of a hill which is crowned by the long barrow known as Knook Barrow, and in an area strewn with round barrows, linear earthworks, excavated Romano-British settlement sites and associated field systems.
While some commentators have seen it as a defended cattle pen associated with the Knook West settlement site, others have regarded it as a “camp’ in its own right. Its position on the lower slopes of the hill point to an intention somewhat different from other “defensive’ sites in the area, and indeed its close proximity to the Romano-British settlements and field system does look intentional, though the connection could be entirely spurious as we have no evidence of contemporaneity.