Using scanned maps and data from the United States Geological Survey (USGS), Esri developed an interactive tool to explore ...

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 ...

He uses a variety of spatial-temporal datasets, such as remote sensing data and derived data products, historical topographic maps, or large real-estate related databases ...