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1. View of construction on roads around the Arizona spillway
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2. Aerial view of Hoover Dam site
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3. Construction of Hoover Dam
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4. Hoover Dam
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5. Aerial view of the future site of Hoover Dam
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6. Hoover Dam construction site
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7. Aerial view of Hoover Dam and the surrounding area
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8. Aerial view of Hoover Dam and surroundings
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9. Downstream face of Hoover Dam
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10. Colorado River question : shall natural resources create local or enlarge distant development?
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11. Water from the Colorado River
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12. Construction of the highway which will cross the top of the dam
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13. Looking downstream on the Colorado River running through Black Canyon prior to construction of Hoover...
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14. View of Hoover Dam construction, early stage
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15. Power substation during Hoover Dam construction
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16. Colorado River problem
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17. Low level concrete mixing plant seen from the Arizona side of the Colorado River
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18. View of Colorado River
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19. Highway near Hoover Dam
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20. Future Hoover Dam reservoir area seen from Black Canyon
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21. Blasting on the Arizona side of the cableway bench excavation
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22. Some desert watering places in southeastern California and southwestern Nevada
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23. Rock blasting in Black Canyon
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24. Arizona Spillway, looking upstream.
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25. Looking upstream at the Arizona Spillway.
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26. Hoover Dam construction
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27. Hoover Dam during construction
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28. Arizona spillway during construction of Hoover Dam
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29. Nevada spillway during construction of Hoover Dam
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30. Construction of intake towers and spillway -- Hoover Dam site
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31. Hoover Dam construction
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32. Construction of diversion tunnels -- Hoover Dam site
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33. Constructing highway to dam site
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34. Building Black Canyon Highway to Hoover Dam site
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35. Laying pipe for Boulder City's water supply.
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36. Construction on the Arizona spillway
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37. Construction on the Arizona spillway and the no. 4 penstock raise in Black Canyon
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38. Looking downstream on the Hoover Dam construction site
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39. Construction view of Hoover Dam, looking downstream
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40. View of the power house and valve houses from top of Hoover Dam
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41. View of Arizona spillway during construction
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42. Hoover Dam during construction, from the Nevada side
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43. Hoover Dam, looking downstream
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44. Hoover Dam under construction
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45. Arizona Black Canyon highway consruction
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46. Intake towers during construction of Hoover Dam
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47. Hoover Dam during construction, looking downstream
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48. Switchyard control house, yard and present substation -- Hoover Dam site
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49. Construction view of the valve house and portal area of Hoover Dam
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50. Downstream view of Hoover Dam construction
 

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