218 years ago today, President Thomas Jefferson signed An Act to provide for surveying the coasts of the United States, and NOAA’s Coast Survey has helped mariners navigate with confidence ever since.
Our charting products and services have expanded considerably over the past two centuries–we’re surveying to help reopen ports within days following a disaster, and using uncrewed surface vehicles among countless other examples–but wanted to take this time to look back at nautical charts, then and now.
You can look through our comprehensive historical chart archive, which includes charts that even pre-date the Coast Survey.
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