Search for all of "Tunnels", all of "Diversion Tunnels", all of "Black Canyon ariz And Nev"

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1. Diversion tunnels during Hoover Dam construction
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2. Aerial view of the Colorado River showing diversion of the river into diversion tunnels no....
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3. Looking up Hoover Dam during construction of the diversion tunnels
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4. Looking up Black Canyon during construction of the diversion tunnels
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5. Looking up Black Canyon during the construction of the diversion tunnels
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6. Lower portals of Diversion Tunnels No. 3 and No. 4, during the flood.
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7. Water flowing into Colorado River, June 16, 1933
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8. Hoover Dam construcion -- blasting
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9. Construction of Hoover Dam
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10. Aerial view of Hoover Dam construction site looking upstream on the Colorado River
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11. Hoover Dam -- downstream face
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12. View of Hoover Dam from downstream on the Colorado River
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13. View of Hoover Dam from downstream on the Colorado River
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14. Blasting at Hoover Dam site
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15. Hoover Dam construction
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16. Hoover Dam construction -- various phases
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17. Hoover Dam construction
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18. Hoover Dam construction
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19. Hoover Dam construction
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20. Aerial view -- Hoover Dam construction
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21. Aerial view of Hoover Dam, looking upstream on the Colorado River
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22. View of Hoover Dam from the downstream side of the Colorado River
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23. Water discharging from the Nevada and Arizona outlet works into the Colorado River
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24. View of water discharging from the Nevada and Arizona outlet works into the Colorado River
 

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