Search for all of "Black Canyon", all of "Construction Workers", all of "Black Canyon ariz And Nev"

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1. Building Black Canyon Highway to Hoover Dam site
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2. Panorama view, showing Six Companies Inc. work on the Arizona side of Black Canyon Highway.
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3. Construction in Black Canyon
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4. Bucket skips being filled with "muck" from the deep inner gorge of Black Canyon.
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5. High scalers preparing anchorages in Black Canyon
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6. High scalers on the Nevada side of Black Canyon
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7. Floor of Black Canyon
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8. High scalers on the Nevada side of Black Canyon above the Colorado River
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9. Black Canyon
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10. Crews and equipment in Black Canyon at dam site
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11. Construction crew at bottom of Boulder Canyon
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12. Construction crews in Boulder Canyon
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13. Bridge across Boulder Canyon at Hoover Dam site.
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14. High scaling operations
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15. Hoover Dam Construction -- blasting
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16. Hoover Dam site, looking downstream
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17. First concrete in Hoover Dam
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18. Hoover Dam, looking downstream
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19. Man standing on trestle bridge on the Colorado River pointing at anchoring cables
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20. Close-up of construction workers rigging a cableway over the Colorado River
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21. Construction workers on cableway transport over the Colorado River
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22. Concrete pouring forms below a cofferdam in the Hoover Dam construction site
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23. Boulder Canyon.
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24. Construction workers on cliffs in Boulder Canyon.
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25. Construction workers at bottom of Boulder Canyon
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26. Producing electricity at the construction site
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27. Workers on the Colorado River
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28. View of construction on roads around the Arizona spillway
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29. Looking upstream toward the Nevada intake towers, showing the intake bridge girders in place.
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30. Hoover Dam construction
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31. Blasting at Hoover Dam site
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32. Hoover Dam construcion -- blasting
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33. Transport trucks at Hoover Dam site
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34. Colorado River -- Beginning construction -- Hoover Dam
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35. Colorado River in early stages of Hoover Dam construction
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36. Construction at lower portal of Hoover Dam
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37. Power houses being constructed at Hoover Dam
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38. Temporary cableway spanning the Colorado River near Lookout Point
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39. Hoover Dam site, looking upstream
 

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