Design
Track a Century of U.S. Development With a Tool That Centralizes Old Maps
The full catalog of USGS topographic surveys is now all on one site and searchable by city.
Early Tuesday, the United States Geological Survey (USGS) launched a Historical Topographic Map Explorer, allowing cartography lovers to easily pore through the agency's expansive collection.
With the help of ESRI, the new site gives users access to more than 178,000 of the USGS's maps dating back to 1884, also making them easily searchable by city.