It Just Got Easier To See A Cool Historical Maps Collection

 

 

Screenshot of the new viewer for USGS historical topo maps.

 

 

” It just got way, way easier to search and browse the US Geological Survey’s collection of historical topographic maps, thanks to a new online map viewer. These maps—more than 178,000 of them—date back to 1880, and they cover the entire country. Best of all, they’re free to download for anyone who wants to, say, check out the contours of the Grand Canyon or study the urbanization of the San Francisco Bay Area (see below).

Hunting for historical topo maps on the USGS site used to be confusing and annoying. It involved a lot of clicking on what you hoped was the right thing, squinting at the tiny preview maps, and twiddling your thumbs while the enormous full-sized version downloaded. And then starting over when it turned out to be the wrong thing.”

 

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