Mighty explosions in the Boulder Canyon, Colorado begins work on the Hoover Dam.
Full title reads: "America. Nature conquered! The mighty Colorado River divided from its age's old course by man's genius."
Nevada, United States of America (USA).
The Colorado River flowing through the deep valley that is Boulder Canyon.
High angle view down into the Canyon to show diversion tunnels at the bottom. An explosion takes place just in front one of the tunnels. Quick shot of people sitting on the edge of the canyon.
High angle shot of the water beginning to flow down the diversion tunnel.
Closer shot from the bottom of the canyon of the tunnel. A man stands in the canyon as the waters swirl past him. The voiceover says that this is the first stage in the construction of the Hoover Dam.
Various shots of men and machines working to move rock from the bottom of the Canyon. Dumper trucks drop rubble into the River to further block the flow of the water. Good C/Us of the rocks being dumped into the water.
High angle shot of the water flowing through the tunnel.
Men climb down rock face on ropes. They are drilling into the rock face to begin the work for the Dam's construction. Quick shot of people sitting on the edge of the Canyon. An explosion rips away more rock from the side of the Canyon. This series of explosions is quite dramatic.