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Keywords from Image Description:
FMIB ManMade Canyon at Culebra.jpeg ManMade Canyon at Culebra Subject Culebra Panama ExcavationPanama Geographic Subject PanamaCulebra Tag Panama Canal Cite book Panama Canal Haskin Frederic Garden City NY Doubleday Page Company Facing page Creator Ernest Red Hallen PDUWASHFMIB Institution University of Washington FMIBsource