Since 2015, Gregory Marouard has been conducting a joint survey of the Oriental Institute and the EES at Kom ed-Dahab, in the Egyptian Eastern Delta. Located on an isolated island in Lake Menzala, this 30 hectare site was revealed by satellite images only in 2011. Completely untouched and accessible only by boat, the Kom ed-Dahab is an ex-nihilo Roman town, widely opened on the Mediterranean sea and one of the Nile branches, which indicates here a strategic emporion. Characterized by an Hippodamian urban grid and peculiar monuments, this short-lived settlement may be considered as a rare example of a Roman colony for Egypt.