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Travel through Space and Time with this Historical Topo Map Explorer
Using scanned maps and data from the United States Geological Survey (USGS), Esri developed an interactive tool to explore ...
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AI Uncovers Thousands of Abandoned Oil Wells Hidden in Old Maps
On USGS quadrangle maps from 1947-1992, oil wells are marked by hollow black circles. For a human, that’s easy to see, but for an AI, it’s not so clear. Image credits: Historical Topographic ...