Los Angeles District - Prado Dam Subproject No. 210 - Work Done Under Contract - Regular Funds - Taken March 31, 1939. Vol. XIV, No.10. View West Along the Axis of Dam Showing a Portion of the X-Y Keywall in the Foreground. The Crane Shown in Photograph No. 9, May Be Seen Beyond the End of the X-Y Keywall.
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