Black and white image of the Union Pacific streamliner brought to the Hoover (Boulder) Dam site with special a train via Six Companies Inc. This corporation was formed through six different companies in order to build the Hoover Dam.
Black and white image of the Union Pacific streamliner brought to the Hoover (Boulder) Dam site with special a train via Six Companies Inc. This corporation was formed through six different companies in order to build the Hoover Dam.
A color image showing Hoover Dam's downstream face; from this angle, water can be seen pouring out of the spillways located on either side of the dam and creating a mist which produces a rainbow in the sunlight in front of the dam.