Description: A map of the transmission systems within California. It
features a plant production capacity list for twenty water and steam power
plants in California. Each of the twenty power plants has a designated color
and transmission line pattern. The Pacific Gas and Electric Company produced
the map and included the excerpt "Spirit of Interconnection" from
Electrical World, August 5, 1922.
Accession Number: 1987/091/020
Publisher: Pacific Gas and Electric Company (PG & E)