What types of elevation datasets are available, what formats do they come in, and where can I download them?

Digital elevation data are available through The National Map Download Client. Click the “How To” link at the top of the viewer for detailed instructions on how to find and download data. There is a seperate site for Services.

The 3D Elevation Program (3DEP) products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, and elevation source (lidar) and associated datasets.

During the first half of 2020, Digital Elevation Models are being migrated to a new data delivery format called Cloud Optimized Geotiff. This change improves product processing time and storage, and supports new and evolving cloud processing capabilities. Legacy software can read the file with no additional modifictions because the underlying file format is a geotiff.

Standard elevation products are available in the following resolutions and formats:

  • 1 arc second (30 m) DEM – GeoTIFF
  • 1 meter DEM – GeoTIFF, IMG
  • 1/3 arc-second (10 m) DEM - GeoTIFF
  • 1/9 arc-second (3 m) DEM - IMG
  • 2 arc-second (Alaska – 60 m) DEM - GeoTIFF
  • 5 meter DEM (Alaska only) - Varies
  • Contours (1:24,000 scale) – Shapefile, FileGDB

Elevation source data are available in the following formats:

  • DEM Source (OPR) – Varies
  • Ifsar Digital Surface Model (DSM) – GeoTIFF
  • Ifsar Orthorectified Radar Image (ORI) – GeoTIFF
  • Lidar Point Cloud (LPC) – LAS, LAZ

Learn more:  How can I download 3D Elevation Program (3DEP) standard DEM data in bulk?

 

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