"2667. Panorama, looking downstream in Black Canyon, taken from the Nevada side, showing the upstream face of 2668. Boulder Dam, Arizona and Nevada Spillways, Intake Towers, Cableways and general construction. May 12th, 1934.
2697. Arizona Spillway, looking upstream. May 25th, 1934
2695 Trash rack at the upper portals of Diversion Tunnel No. 2. May 25th, 1934.