SRTM (Shuttle Radar Topography Mission) is a global research endeavor that yielded nearly-global digital elevation models (DEM). QGIS has a plugin called the SRTM Downloader that allows for SRTM data to easily be downloaded straight from QGIS. SRTM data downloaded by the plugin is in the form of .hgt files. Note also that these rasters are downloaded as 1 degree by 1 degree and the plugin will download all tiles that intersect the extent that you set.
Once successfully installed, the plugin should be available from Plugins -> SRTM-Downloader -> SRTM Downloader from the Menu bar.
The rasters should now be loaded in QGIS for styling, analysis, processing, and manipulation. :)
And that’s how you can load SRTM Digital Elevation Models (DEM) in QGIS. :)
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