Map room Collection
Franklin-Folger chart of the Gulf Stream
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About this map
Source & attribution
- Caption
- Library of Congress, Geography and Map Division.
- Catalog notes
- A powerful ocean current becomes a visible route-planning problem on this chart. Franklin and Nantucket captain Timothy Folger combined practical maritime knowledge with a printed Atlantic chart to describe the Gulf Stream. The current helps explain why voyages in opposite directions could take very different amounts of time. For a map collection, it offers an engaging example of how observations made at sea can reshape the way people travel.