An ancient habitation mound that served as the port of Ur from the Early Dynastic III period until the Ur III period, and possibly longer. Studies have revealed canals and a port.
F. D'AGOSTINO et al (2013), Abu Tbeirah. Preliminary report of the second campaign (October-December 2012) (https://www.researchgate.net/publication/273060254_Abu_Tbeirah_Preliminary_report_of_the_second_campaign_October-December_2012 )