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Rights Holder and Contact
Ontario City Library, Robert E. Ellingwood Model Colony History Room For more information on copyright or permissions for this image, please contact the Robert E. Ellingwood Model Colony History Room at the Ontario City Library at 909-395-2206 or localhistory@ontarioca.gov.
Description
This document consists of a map as well as an article detailing the progress of tunnel construction for the Colorado River Aqueduct. Photographs of the construction are included.
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