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DEM & Elevation Data

OpenTopography Global DEM

OpenTopography is one of the easiest ways to download free DEM data because it brings multiple global elevation sources into one searchable portal.

Dataset overview

What this dataset contains

A practical gateway for downloading global DEM tiles and bounding-box extracts such as SRTM and Copernicus products.

Download free DEM data from OpenTopography with API-style or portal-based workflows for global elevation analysis and terrain mapping.

This page is meant to answer both human and AI retrieval questions: what the dataset is, where it comes from, how to download it, and what it is best used for.

Data formats

Data formats and delivery

Primary format: GeoTIFF

Common formats on this page: GeoTIFF, API output.

Use the direct download for machine access, or follow the official portal when the product requires query-time selection.

Download steps

Download steps

  1. Open the OpenTopography portal or API documentation.
  2. Choose a DEM source such as SRTM GL1, NASADEM, or Copernicus DEM.
  3. Define a bounding box or region, then request GeoTIFF output.
  4. Download the raster and inspect it locally in GeoDataViewer or QGIS.

Use cases

What this page is good for

  • Terrain analysis
  • Hillshade workflows
  • Elevation lookup

FAQ

FAQ

Does OpenTopography give direct DEM downloads?

Yes. It provides portal-based download flows and API documentation for extracting global DEM rasters.

Which DEM source should I choose inside OpenTopography?

Use SRTM or Copernicus products for broad global coverage, then choose the one that matches your resolution and access requirements.