As with the nuclear silos at Greenham Common, and their surrounding fences, Sillbury hill and the Avebury Stone circles are scheduled ancient monuments. The final decision to schedule a monument is taken by the Secretary of State for Digital, Media and Sport, who can also decide to withdraw it status. According to Historic England “The Schedule of Monuments has 19,854 entries (2016) and includes sites such as Roman remains, burial mounds, castles, bridges, earthworks, the remains of deserted villages and industrial sites. Monuments are…by definition, considered to be of national importance.”
In the presence of Sillbury Hill, after visiting the silos at Greenham, there is a sense of how both can be perceived through the lens of an archaeological imaginary, as described by Michael Shanks:“To recreate the world behind the ruin in the land…to bring alive the past-in-the-present, as in an historical novel, to cherish and work upon fragments of the past, what remains of the past in the present. This is the work of the archaeological imagination”