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Landsat data products held in the USGS archives can be searched and downloaded at no charge from a variety of data portals. Various Landsat-related tools and services are available to help users determine when data will be acquired, and how to search for data. 

Landsat 9 Collection 2 cloud truth mask validation set

The U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center in Sioux Falls, SD developed a cloud validation dataset from 48 unique Landsat 9 Collection 2 images. These images were selected at random from the Landsat 9 archive from various locations around the world.  While these validation images were subjectively designed by a single analyst, they provide useful inform