Search for all of "Colorado River", all of "Buildings And Structures", all of "Standard Oil Co Of California"

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1 Object thumbnail
Colorado River -- Hoover Dam site View looking down at the Colorado River in Black Canyon, the future site of Hoover Dam. Roads and buildings can be seen on the banks above the river and some construction equipment is visible.
2 Object thumbnail
Hoover Dam construction Shows one of the portals to the diversion tunnels. A portion of the Colorado River is visible as well as construction workers and construction buildings.
 

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