Several global and national agencies provide high-quality elevation data free of charge. 1. USGS EarthExplorer (United States & Global)
Often used interchangeably with DEM, but typically refers to a bare-earth model that includes additional features like river breaks and ridges. Top Sources for Free Elevation Data Download elevations data download
The USGS EarthExplorer is one of the most comprehensive portals. It hosts both domestic and international datasets, including the widely used and ASTER Global DEM . elevations data download
Before downloading, it is essential to distinguish between the three primary models used in geospatial analysis: elevations data download