This report describes and discusses the archaeological sites explored by the writers in an intensive survey of the lower catchment of the river valley which reaches from just south-west of Pigaidakhia to the mouth of the Ayiofarango just west of Kaloi Limenes (Fig. 1). This area was chosen because it was known to be of considerable archaeological importance, yet in recent years it had been subjected more to the depredations of tomb-robbers than to the exploration of archaeologists. In addition, there was the possibility that a road would be cut through the valley from the Mesara to Kaloi Limenes. A survey in advance of such work would enable sites of archaeological importance to be recorded and either investigated or safeguarded before any construction work took place.