This work studies the enclosed sites of Peeblesshire, Berwickshire and selected sites from E Dumfriesshire, Scotland. This area has seen very little interest in archaeological research in the past. The aim of the study was to examine the later prehistoric enclosed sites and to look at their landscape settings. From this data, possible settlement patterns can be observed, at both regional and local levels, and from these follow observations of enclosed sites together with their immediate terrain and archaeological features nearby, and from these an organised archaeological landscape can be seen, although it is a cumulative rather than a contemporary picture. When viewing the results from this study, a major boundary between two different enclosed site patterns can be detected, one including Berwickshire, Selkirkshire, Peeblesshire and far N NW part of E Dumfriesshire, and the other one including the rest of E Dumfriesshire. This boundary differs from previously suggested ones and forms a firm basis for further studies on more than one level.