Map shows that many of the most important ports in the USA are inland! Navigable rivers are a great driver for the US economy. Source: https://t.co/clEH9ZM4wW pic.twitter.com/717qDMlgX5
— Simon Kuestenmacher (@simongerman600) October 29, 2019
via Twitter https://twitter.com/simongerman600
October 29, 2019 at 04:31PM
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