Pg.27 #2568 Union Pacific "Train of Tomorrow" on the Lomix Trestle, at the upstream face of Boulder Dam, where the concrete is transferred from Lomix trains to the Dam. March 9th, 1934. Pg.27 #2589 View taken from No. 2 Arizona derrick, showing Nevada Spillway in the background. March 24th, 1934. Pg.27 #2616 Looking upstream in Number 4 raise and plug. March 28th, 1934.

Pg.57 #2963 No.5 Intake Tower finished to Elevation 1232, showing curtain wall. Dec. 5th, 1934. Pg.57 #3009 Telephoto looking downstream into the Arizona Spillway, showing construction of the spillway bridge. Jan. 8th, 1935. Pg.57 #2980 Looking upstream at the upper end of No.1 plug, showing forms for the Intake Transition. Dec. 19th, 1934. Pg.57 #2977 Looking upstream into No.1 plug, showing the placing of the high pressure valves and method of pouring. Dec. 19th, 1934.

Pg.63 #3062 Boulder Dam, looking upstream. Feb. 1st, 1935. Pg.63 #3028 Upstream face of Boulder Dam, looking downstream from the upstream cofferdam. Arizona Intake Towers on left, Nevada Intake Towers to the right. Jan. 28th, 1935. Pg.63 #3038 Looking across the downstream face of Boulder Dam, showing the utility towers and elevator shaft. Jan. 28th, 1935.

Pg.94 #3476 Looking upstream in Nevada Valve House. Note installation of needle valves and gates. Sept. 27, 1935. Pg.94 #3478 Looking upstream, on roof of Nevada Valve House. Steel rails in place, ready for pouring concrete slab. Sept. 27, 1935. Pg.94 #3473 Looking into Arizona Spillway Raise. Jumbo is being used for grouting, back of concrete lining. Sept. 27, 1935.

Pg.98 #3487 Boulder Dam and Powerhouse, looking upstream from lower cofferdam. Oct. 28, 1935. Pg.98 #3500 Boulder Dam Switchyard, showing excavation and construction. Note Boulder Dam Highway in background. Oct. 28, 1935. Pg.98 #3501 Looking upstream in No.2 downstream plug, showing water conduit being placed. Oct. 28, 1935. Pg.98 #3506 Looking upstream toward No.3 downstream plug. Note clean-up operations, getting ready for carpenters. Oct. 28, 1935.

Pg.95 #3553 View from the crest of Boulder Dam, looking downstream toward the Power House and lower portals of Diversion tunnels. Nov. 26, 1935. Pg.95 #3527 Boulder Dam and Power House, looking upstream from Nevada side. Note reservoir and Fortification Hill in background. Nov. 23, 1935. Pg.95 #3545 View from reservoir, looking downstream at Boulder Dam and Intake Towers. Nov. 26, 1935.

Pg.19 #2521 Forms in the upstream plug of Diversion Tunnel No. 2. Jan 27th, 1934. Pg.19 #2522 Forms in the upstream plug of Diversion Tunnel No. 3. Jan 27th, 1934. Pg.19 #2525 Placing concrete lining in Arizona upper penstock tunnel. Jan. 27th, 1934. Pg.19 #2524 Placing concrete lining in Arizona upper penstock tunnel. January 27th, 1934.