The aim of this thesis is to make an examination of the later prehistoric enclosed sites and look at their landscape settings. Lists of enclosed sites are based on my own critical assessment of the data gathered in the RCAHMS Inventories which is supported by visits to the sites and observation of aerial photographs. The core text of this thesis presents the possibility of detecting new information from the somewhat different observation of the enclosed sites as used before. RCAHMS ‘neat’ categories of hill-forts, enclosures etc. are ignored in this study. Instead, all the enclosed sites are observed as one single category. As a result, some new possible categorisation occurs. Consequently, this brings an opportunity for further discussions (e.g. entrance orientations), a possibility of applying newly discovered categories to wider areas and, subsequently, a series of new questions. Interpretation of results enables a discussion on identifying possible settlement patterns, wide area as well as locally. Several different forms of possible organisation of landscape occur. This is particularly well seen in a cluster of sites with multiple ramparts.   The most striking finding is the detection of a so-called living ancestor. This discovery strongly suggests an organisation of archaeological landscape through centuries/millennia. Early man-made features in the landscape were incorporated into the later patterns (not only enclosed sites, but also burials, henges etc.) Based on this discovery we can now witness that archaeological features, which were accumulated in the landscape through centuries, form tidy patterns even when put on a map. In addition, organisation of places can most certainly be observed on a smaller level as most of the enclosed settlements show organised interiors.