Browse Items (22 total)

A 220 kV Rack at Eagle Rock Substation

Eagle Rock Substation was a result of the work that the High Voltage Laboratory at Caltech performed on transmission lines. Without the work of High…

Big Creek Transmission Line

In the early 1900s, Los Angeles and Henry Huntington’s Pacific Electric railway were rapidly expanding. With greater demands of electrical power,…

Birdseye View Plan of 18 Powerhouses at Big Creek

Starting in October 1900, John Eastwood was set on creating a power plant in the upper San Joaquin River and created Mammoth Power Company (Jackson…

Celebrating 125 Years (1886-2011)

This DVD was produced By Southern California Edison, a consolidation of Henry Huntington’s power generation interests formed in 1917, detailing their…

Charles C. Lauritsen and Robert A. Millikan Standing Atop the Million Volt X-ray Tube

This photograph shows a defining moment in the early shape of physics research and study at Caltech: Charles C. Lauritsen and Robert A. Millikan…

Colorado River Aqueduct Map

This map of the Colorado River Aqueduct was produced by the Metropolitan Water District of Southern California in April 1936. Stretching nearly 300…

Diagrammatic Elevation Profile Map of Big Creek

Inspired and motivated by the droughts of southern California and the need for clean energy in the early 20th century, the Big Creek Hydroelectric…

Eagle Rock Substation Looking North

The Eagle Rock Substation was the endpoint of the transmission lines stretching from the Big Creek to Los Angeles, initially spanning 240 miles and…