51. Night view of Hoover Dam under construction
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52. Construction of Hoover Dam
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53. Hoover Dam, looking upstream
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54. Hoover Dam construction, looking upstream
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55. Union Pacific Streamline train at the dam site
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56. Hoover Dam from the downstream side
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57. Water from the Colorado River
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58. Hoover Dam construction, looking upstream
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59. Hoover Dam construction, looking upstream
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60. Hoover Dam construction, looking upstream
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61. Hoover Dam construction, looking upstream
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62. Hoover Dam construction, looking upstream
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63. Hoover Dam construction, looking upstream
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64. Hoover Dam construction, looking upstream
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65. Hoover Dam construction, looking upstream
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66. Boulder Canyon dam : the essence of the Swing-Johnson Bill ; Boulder Dam : from...
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67. Views of Boulder Dam and Las Vegas, Nevada
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68. Gantry crane inside diversion tunnel no. 3
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69. Side-wall jumbo inside diversion tunnel
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70. Some desert watering places in southeastern California and southwestern Nevada
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71. Section of a concrete-pouring jumbo standing outside of a diversion tunnel
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72. Concrete pouring forms in the Hoover Dam construction site in Black Canyon
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73. Nevada Spillway, looking upstream.
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74. Arizona Spillway, looking upstream.
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75. Trains on Elevation 720 Railroad Bench, hauling conrete to Hoover Dam.
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76. Looking upstream at the Arizona Spillway.
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77. Looking upstream at the Nevada Spillway.
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78. Interior of spillway tunnel, Hoover Dam site
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79. Nevada spillway weir section.
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80. Nevada Spillway, looking upstream.
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81. Construction of the power house foundation in Hoover Dam
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82. Close-up of slot at the upstream face of Hoover Dam
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83. Construction on the upstream face of Hoover Dam
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84. Construction on the downstream face of Hoover Dam
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85. Construction on Hoover Dam, looking downstream on the Colorado River
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86. Construction on the Nevada spillway weir
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87. Construction of the Arizona power house foundations
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88. Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River
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89. Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River
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90. Excavation for bridge abutment in Arizona spillway.
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91. Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River
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92. Construction on the Nevada intake towers
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93. Construction on the Nevada power house
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94. Construction on the Arizona power house
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95. Construction on the power house footings
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96. Union Pacific "Train of Tomorrow" -- Hoover Dam site
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97. Intake towers and spillway -- Hoover Dam construction
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98. Nevada intake towers under construction
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99. Hoover Dam intake towers during construction
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100. Machinery at Hoover Dam site.
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