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Archive: April 2026 (5 Posts)

black and white photo of man sitting in front of a computer terminal

SYMAPping the Puget Sound: Exploring Early Techniques in Computer Cartography

Posted by: Meagan Snow

The 1970 Census was the first United States decennial census to be released in machine-readable format, allowing cartographers sudden access to large amounts of aggregated demographic data about the entire United States. This blog post explores early computer cartography mapping techniques that took advantage of the new census format, including SYMAP and SYMVU, as demonstrated in an atlas held by the Geography & Map Division titled “The Puget Sound Region: A Portfolio of Thematic Computer Maps.”