In 1960, in the wake of the Egyptian Government’s announcement that the Aswan Dam would be once again heightened, this time creating a permanent lake to extend 500 kilometers deep into Nubia, many institutions answered the UNESCO call to save the ancient monuments. Frenetic work of documentation and survey (both archeological and ethnographic), excavation, and rescue of the most important buildings began.
Salvoldi, Daniele Dr. and Geus, Klaus, "A historical comparative gazetteer for Nubia" (2017). Sociology, Egyptology & Anthropology Department: Faculty Work. 15.