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751. Aerial view of Hoover Dam area
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752. Aerial view of Hoover Dam and surroundings
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753. Hoover Dam and surrounding area
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754. Hoover Dam construction
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755. Construction -- Hoover Dam
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756. Hoover Dam construction -- upstream face
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757. Hoover Dam construction
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758. Hoover Dam construction
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759. Hoover Dam construction
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760. Aerial view of Hoover Dam and the surrounding area
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761. Aerial view of Hoover Dam and the surrounding area
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762. Aerial view of Hoover Dam and its surroundings
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763. Aerial view of the Hoover Dam area
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764. Aerial view of Hoover Dam and reservoir (Lake Mead)
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765. Blasting -- Hoover Dam site
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766. Hoover Dam construction
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767. Hoover Dam Construction -- blasting
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768. Hoover Dam construction
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769. Blasting at Hoover Dam site
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770. Hoover Dam construcion -- blasting
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771. High scalers -- Hoover Dam site
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772. Scalers -- Hoover Dam site
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773. High Scalers at Hoover Dam site
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774. High scalers -- Hoover Dam site
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775. Black Canyon prior to dam construction
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776. Hoover Dam construction -- transporting equipment
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777. Hoover Dam workers on canyon floor
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778. Hoover Dam site -- workers welding
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779. Close-up of cement bucket used at Hoover Dam site
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780. Pouring concrete -- Hoover Dam
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781. Hoover Dam -- Cement work
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782. Cement work -- Hoover Dam
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783. Inside a diversion tunnel -- Hoover Dam construction
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784. Workers in diversion tunnels -- Hoover Dam site
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785. Construction in diversion tunnel -- Hoover Dam
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786. Construction of diversion tunnel at Hoover Dam
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787. Construction workers in diversion tunnel, Hoover Dam site
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788. Diversion tunnel under construction at Hoover Dam site
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789. Construction of Hoover Dam diversion tunnel
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790. Construction -- Hoover Dam -- Diversion tunnel
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791. Construction of Hoover Dam diversion tunnel
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792. Construction of Hoover Dam diversion tunnel and portal
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793. Construction of Hoover Dam
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794. Construction workers inside Hoover Dam diversion tunnel
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795. Portals, Hoover Dam construction
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796. Railroad cars and siding
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797. Transport trucks at Hoover Dam site
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798. Construction -- near Hoover Dam
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799. Barge on Colorado River near Hoover Dam
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800. Black Canyon near spillway location
 

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