Report on a major rescue excavation of a Late Bronze Age waterfront site with exceptional preservation of deposits buried under the flood silts of the Thames. This volume analyses the stratigraphy, structural evidence and finds from a part of the site that included the foundations of a Late Bronze Age enclosure stockade set in the edge of a contemporary river channel. The well preserved environmental evidence provides a detailed picture of developments in the local environment; a concluding discussion looks at the nature of the settlements in terms of roles, contacts and status. This is the first of several volumes on the excavations that this discovery has initiated.