National Map Viewer Work Download May 2026

The (often referred to as the National Map Viewer download tool) is the primary web portal for accessing free, high-resolution geospatial data from the U.S. Geological Survey (USGS) . While the TNM Viewer is used for visualizing data, the TNM Downloader is the specific tool used to search for and download GIS datasets and topographic maps. Core Data Available for Download

The National Map provides eight foundational layers of nationally consistent geographic data for the United States and its territories: The National Map Viewer | U.S. Geological Survey - USGS.gov national map viewer download