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Old nautical charts

Charts made for sailors: harbours and coasts with depth soundings, sailing directions and lighthouses, from the 17th-century Dutch and English chart makers to the US Coast Survey's charts of the 19th century.

Why they are free to use: Published long ago or made by the US Coast Survey: no US copyright. Each map's page shows its own licence basis and a credit line.

Harbours

Search “nautical chart of a harbor with soundings” for more, or ask Claude for it

US Coast Survey charts

Search “US Coast Survey chart of the coast” for more, or ask Claude for it

Oceans

Search “chart of the Atlantic Ocean with sailing routes” for more, or ask Claude for it

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Add Find Any Map to Claude and ask for the maps you need, part by part. Claude searches this index, shows you the matches with their licences and writes the credit lines.

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