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Opening Day of the Los Angeles Aqueduct. It is estimated that over 30,000 people showed up at the opening of the Los Angeles Aqueduct on November 5, 1913. They came to watch the Owens Valley water cascade into the resevoir. The caption of this picture was that the automobile was "here to stay" in the San Fernando Valley. You can make out some horse and buggies to the rear of the image. San Fernando Valley History Digital Library.