This thesis addresses the question of an impoverished record for the Orcadian Bronze Age. It presents the first comprehensive synthesis of this period, which is overshadowed by its neighbours. Factors that influenced the formation of the archaeological record in Orkney are investigated. The effects of agricultural improvement on archaeological survival, not previously examined in detail in an Orcadian context, are shown to have been particularly significant. It is found that destruction of sites of all periods took place on a large scale, especially in the 19th century, and that this went largely unrecorded, which has not hitherto been fully appreciated or understood. Critical evaluation of the chronology and scale of land improvement i...