This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB CrossSection of Locks Giving an Idea of Their Size.jpeg CrossSection of Locks Giving an Idea of Their Size Subject Locks Hydraulic Engineering Tag Panama Canal Cite book Panama Canal Haskin Frederic Garden City NY Doubleday Page Company Creator Frederic Haskin PDUWASHFMIB Institution University of Washington FMIBsource accession