1800s Archive · Bridges & engineering

Bird's eye view of Pedro Miguel Lock, showing approach wall, Panama Canal

Panama canal · 1913

Bird's eye view of Pedro Miguel Lock, showing approach wall, Panama Canal, Panama canal, 1913
Bird's eye view of Pedro Miguel Lock, showing approach wall, Panama Canal, Panama canal, 1913. Bridges & engineering — The 1800s Archive, from the Library of Congress record.

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