No / This paper considers the evidence for the abandonment of souterrains in that part of east central Scotland characterized by Wainwright as 'southern Pictland'. The evidence suggests that most souterrains here were deliberately destroyed, or at least infilled, and that none seems to have outlasted the early third century AD. The process of destruction seems to have been associated with a significant degree of ritual activity not previously noted. It is postulated that the evidence would allow for a single episode of abandonment (a 'souterrain abandonment horizon'), in the late second or early third century AD, which might be related to a major reorientation of social and political structures, perhaps associated with changes in Roman frontier policy.