1. Partial proceedings of Conference of governors, commissioners and advisors of the states of Arizona, California,...
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2. Colorado River basin : hearings before the Committee on irrigation and reclamation, House of representatives,...
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3. Aerial view of Hoover Dam
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4. Sunset on the Colorado River
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5. Colorado River below Hoover Dam site
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6. Aerial view of Hoover Dam and the surrounding area
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7. View of Hoover Dam construction from the top of the dam
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8. Colorado River problem
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9. Closeup of Upper Portals of Diversion Tunnels No. 3 and 4, showing flow in Diversion...
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10. Colorado River basin : hearings before the Committee on irrigation and reclamation, House of representatives,...
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11. Man on bank of Colorado River in Black Canyon
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12. View of Colorado River in Black Canyon
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13. Looking down Black Canyon on the Colorado River
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14. Low mix concrete plant
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15. Aerial view of Colorado River-Black Canyon
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16. Downstream view of Hoover Dam construction site
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17. Looking up Black Canyon from the dam site
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18. Aerial view of Black Canyon and the Colorado River
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19. Surveyors overlooking Black Canyon.
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20. Blasting in Black Canyon seen from the Colorado River
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21. Close-up of construction workers rigging a cableway over the Colorado River
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22. Hoover Dam under construction
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23. Aerial view of Black Canyon and the Colorado River
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24. Low level concrete mixing plant seen from the Arizona side of the Colorado River
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25. "Crows Nest" overlooking Black Canyon and the Colorado
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26. Rock blasting on the Arizona side of Black Canyon
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27. High scalers on the Nevada side of Black Canyon
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28. High scalers on the Nevada side of Black Canyon above the Colorado River
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29. Aerial view of the upper cofferdam on the Colorado River in Black Canyon
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30. Building Black Canyon Highway to Hoover Dam site
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31. View of Hoover Dam with Fortification Hill in the background
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32. View of Hoover Dam from downstream on the Colorado River
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33. View of Hoover Dam from downstream on the Colorado River
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34. Water being discharged from the outlet works of the valve houses in Hoover Dam
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35. Tourists and film crew in Black Canyon
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36. Water discharging from the Nevada and Arizona outlet works into the Colorado River
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37. View of water discharging from the Nevada and Arizona outlet works into the Colorado River
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38. Concrete mixing plant in Black Canyon
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39. Blasting at Hoover Dam site
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40. View taken looking upstream on the Colorado River of the Hoover Dam construction site
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41. Aerial view of Hoover Dam construction site looking upstream on the Colorado River
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42. Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River
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43. Looking downstream from the Arizona side of Black Canyon, showing the reservoir level at the...
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44. Colorado River -- Hoover Dam site
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45. Looking up Black Canyon during construction of the diversion tunnels
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46. Arizona intake tower derrick.
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47. Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River
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48. Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River
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49. Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River
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50. Aerial view of the Hoover Dam construction site looking upstream on the Colorado River
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