This volume brings together unpublished Italian and Albanian archaeological reports and new archaeological studies from recent fieldwork that throw new light on the archaeology and history of the Pavllas River Valley, the Mediterranean alluvial plain in the territory of Butrint, ancient Buthrotum, in southwestern Albania. It gives prominence for the first time to two important sites, Kalivo and Cuka e Aitoit, which are here reinterpreted and shown to have played major roles in the early history of Butrint as it evolved in the later first millennium BC to emerge as the key city of Chaonia in Epirus. Butrint 7 also presents the full excavation report of the Late Bronze Age and Hellenistic fortified site of Mursi, in addition to other Butrint Foundation surveys and excavations in the hinterland of Butrint, including the Roman villa maritima at Diaporit, the villa suburbana on the Vrina Plain, and Roman sites on Alinura Bay and at the Customs House, as well as new surveys of the early modern Triangular Fortress and a survey to locate the lost Venetian village of Zaropulo. The volume also features a new study of the Hellenistic bronze statuette of Pan found on Mount Mile and of his sanctuary at Butrint. The volume concludes with a comprehensive reassessment of the Pavllas River Valley in relation to Butrint, from the Palaeolithic to the modern eras, examining how dominion, territory, environment and the ‘corrupting sea’ reshaped Butrint and its fluvial corridor diachronically and particularly brought profound territorial, economic and social alterations under the Roman Empire.