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TNM Download

The TNM Download website is hosted by the US Geological Survey (USGS). It’s the successor to The National Map Viewer. It provides FTP access to a large number of important national-level datasets.

  • Topographic maps • National Boundary Dataset
  • National Hydrography Dataset (NHD)
  • 3D Elevation Program • Map Indices
  • Watershed Bounday Dataset (WBD)
  • National Agriculture Imagery Program (NAIP)
  • Geographic Names Information System (GNIS)
  • National Land Cover Database (NLCD)
  • Small-scale Boundaries, Contours and Elevation
  • National Structures, Transportation Datasets

Download portal URL: https://viewer.nationalmap.gov/basic/

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