Interior of Diversion Tunnel No. 2 at Hoover Dam during construction on the ceiling. The tunnel is illuminated by electric lights. Typed label on back of photograph: "Nevada. Diversion Tunnel No. 2 on Nevada side. Putting in ceiling."
Photographs from the University of Nevada, Las Vegas Creative Services Records (2010s) (PH-00388-05). Client: Takiyah Ray, Office of Diversity Initiatives