This paper reviews the progress of research over the past twenty years, with particular reference to enclosed and unenclosed settlement, agricultural patterns, domestic structural types and burial practices of the Iron Age in the south-eastern Borders. The concept of a 'trend towards enclosure' in the first millennium BC is reviewed and rejected, not least on the grounds of evidence from excavation for the dating sequences of major enclosed sites. In consequence a new overview of the later prehistoric settlement of the region is now possible, consistent with the accumulating archaeological and environmental data.The publication of the proceedings of a conference held in Edinburgh in 1981 entitled Later Prehistory in South-East Scotland (Harding 1982) represented the culmination of a period of activity in field research in the region which was unparalleled since the pioneer post-war programme particularly associated with the name of Mrs Peggy Piggott. It involved a number of (then) younger staff of the Royal Commission on the Ancient and Historical Monuments of Scotland and younger professional field archaeologists, as well as established staff from the University of Edinburgh and members of local amateur archaeological field groups. Field survey was combined with an intensive programme of air survey, particularly in the Roxburghshire Cheviots, coinciding with the excavation of some key sites in the East Lothian and Berwickshire coastal plain, sponsored by the then Scottish Development Department in advance of destruction.One of the major advances of this programme of fieldwork (Barclay 1995) was the recognition that narrow, 'cord-rig' agriculture (Halliday 1986) was in the Borders associated with both Roman-period and pre-Roman settlement, dating from the mid-first millennium BC at least, along with palisaded enclosures and ring-ditch houses. But it was not simply the recognition of a distinctive class of agricultural remains which marked a significant watershed, but the fact that in some cases these highly fugitive traces, often virtually undetectable from the ground without the evidence of air-photography, occurred extensively in the Borders uplands (though commonly made up of a patchwork of smaller areas), linking extant settlements into a landscape pattern on a scale which was very much more comprehensive than was normally recoverable in lowland areas where later occupation and agriculture had been more intensive. Even in such a well-researched area such as the Borders, these remarkable survivals allowed the potential for a qualitative advance in understanding and interpretation.