Search for all of "Colorado River", all of "Black Canyon ariz And Nev"

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101. Water being discharged from the outlet works of the valve houses in Hoover Dam
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102. Aerial view of Hoover Dam
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103. Tourists and film crew in Black Canyon
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104. Completed downstream face of Hoover Dam, showing the power houses
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105. Nevada Spillway open cut excavation
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106. Concrete mixing plant in Black Canyon
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107. Hoover Dam Construction -- blasting
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108. Hoover Dam construction
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109. Blasting at Hoover Dam site
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110. Hoover Dam construcion -- blasting
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111. Scalers -- Hoover Dam site
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112. Black Canyon prior to dam construction
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113. Looking up Black Canyon from the dam site
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114. Aerial view of sundown in Black Canyon at the Hoover Dam construction site
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115. Preliminary construction at Hoover Dam site
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116. Hoover Dam construction
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117. Hoover Dam construction
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118. Sundown in Black Canyon at the Hoover Dam construction site
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119. Hoover Dam construction
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120. Hoover Dam construction
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121. Hoover Dam construction
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122. Hoover Dam site from the Nigger Head, Diversion tunnel construction
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123. Hoover Dam construction -- various phases
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124. Looking up Hoover Dam during construction of the diversion tunnels
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125. Hoover Dam construction
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126. Looking up Black Canyon during construction of the diversion tunnels
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127. Hoover Dam construction
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128. Hoover Dam construction
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129. Hoover Dam construction
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130. Looking up Black Canyon during the construction of the diversion tunnels
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131. Early stages of construction of Hoover Dam
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132. Black Canyon during early stages of dam construction
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133. Bridge construction near Hoover Dam site
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134. Construction at lower portal of Hoover Dam
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135. Hoover Dam construction
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136. Aerial view -- Hoover Dam construction
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137. Hoover Dam construction, looking upstream
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138. Portion of the gravel pits on the Arizona side of the Colorado River
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139. Bridge across Boulder Canyon at Hoover Dam site.
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140. View of railroad tracks being laid at Hoover Dam site.
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141. Black Canyon
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142. Construction crew at bottom of Boulder Canyon
 

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