780Af0108: "Anderson-Cottonwood canal, Redding, California, showing canal section and type of soil"
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This negative is of a photograph. Title information from "Seepage Losses from Irrigation Channels" by Carl Rohwer and Oscar Van Pelt Stout. See Figure 29. The original image was taken in May 1923 and shows a man standing on the bank of the canal in the distance.