The main aims of this study are: to examine the development of Iron Age and Roman landscape of the Foulness Valley, East Yorkshire (northern England), from around 800 BC to the end of the Roman period; to test the validity of the results arising from earlier work undertaken concerning the location and character of Iron Age and Roman settlement and industry in a context of the whole catchment of the Foulness Valley; and to place the Iron Age and Roman archaeology and environment of the Foulness Valley in the wider context of Britain and beyond.