Photograph of Southern California Edison transmission lines, March 4, 1923. To the left of center, a transmission tower stands on a grassy field with three thick wires extending out of the top. The wires stretch through the sky into the right foreground and connect to another tower in the left background. An identical tower sits to the right. Transmission towers and connecting wires can be seen extending into the background as well as to the left and right
Photograph of Southern California's Natural Gas supply system, ca. 1955. A series of piping makes it...
Photograph of a "general view of a complete section of Boulder Dam transmission line in Silver Lake ...
Photograph of the Southern California Edison steam power plant in Long Beach, ca.1930. At left, a tw...
Photograph of electric transmission lines, November 1928. A transmission tower stands tall in the ce...
Photograph of electric transmission tower in the mountains, ca.1930. At center, a huge transmission ...
Photograph of the exterior of an electric plant, August 1927. A large stone building sits in the cen...
The photograph was taken from the ground looking up at high-tension power lines. The steel towers ha...
Photograph of electric transformers that supply power to Los Angeles, September 26, 1923. A line of ...
Photograph of transmission tower in background, showing employees working over a body of water, ca.1...
Photograph of electric transmission tower in the mountains, [s.d.]. The tower is pictured just to th...
Photograph of the Boulder Canyon transmission line near Boulder Dam (Dead End Tower), ca.1935. The s...
Photograph of a single transmission tower, showing employees working on it, ca.1950. In the backgrou...
Detail, top of 14 story building; Originally the home of a utility company, the Southern California ...
Photograph of Diversion Dam of Southern California Edison Co., ca.1929. To the left, water flows ove...
Photograph of Southern California Edison Company water power plant on the Kern River, ca.1930. A tal...
Photograph of Southern California's Natural Gas supply system, ca. 1955. A series of piping makes it...
Photograph of a "general view of a complete section of Boulder Dam transmission line in Silver Lake ...
Photograph of the Southern California Edison steam power plant in Long Beach, ca.1930. At left, a tw...
Photograph of electric transmission lines, November 1928. A transmission tower stands tall in the ce...
Photograph of electric transmission tower in the mountains, ca.1930. At center, a huge transmission ...
Photograph of the exterior of an electric plant, August 1927. A large stone building sits in the cen...
The photograph was taken from the ground looking up at high-tension power lines. The steel towers ha...
Photograph of electric transformers that supply power to Los Angeles, September 26, 1923. A line of ...
Photograph of transmission tower in background, showing employees working over a body of water, ca.1...
Photograph of electric transmission tower in the mountains, [s.d.]. The tower is pictured just to th...
Photograph of the Boulder Canyon transmission line near Boulder Dam (Dead End Tower), ca.1935. The s...
Photograph of a single transmission tower, showing employees working on it, ca.1950. In the backgrou...
Detail, top of 14 story building; Originally the home of a utility company, the Southern California ...
Photograph of Diversion Dam of Southern California Edison Co., ca.1929. To the left, water flows ove...
Photograph of Southern California Edison Company water power plant on the Kern River, ca.1930. A tal...
Photograph of Southern California's Natural Gas supply system, ca. 1955. A series of piping makes it...
Photograph of a "general view of a complete section of Boulder Dam transmission line in Silver Lake ...
Photograph of the Southern California Edison steam power plant in Long Beach, ca.1930. At left, a tw...