13,000 miles reduced to 47, - Culebra, the deepest cut of the Panama Canal, near Pacific end

Select what you would like to download. If choosing to download a digital item, please select the file format you wish to download. Please note full digital object download may take several minutes (PDF only).

Certain download types may have been restricted by the site administrator.

Select the digital object elements you would like to include in the embed code.