Burrowing into the sandhills of Southern Nevada, archeologists have uncovered the homes and utensils of a thriving Indian civilization which existed 300 or 400 years before Columbus discovered America. Now the rising waters of Lake Mead are about to submerge the Lost City and remove it permanently from the field of research. But in the meantime the men of science have uncovered a wealth of interesting facts about these ancient tribesmen. The highlights of their discoveries are presented in this story by Johns Harrington, son of the archeologist in charge of the excavations.