Global Land Survey 1975
Global Land Survey 1975 images were acquired from 1972 to 1987 by Landsat 1-5 MSS.  Landsat 4-5 data were used to fill gaps in the Landsat 1-3 data.
 
The U.S. Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA) collaborated on the creation of the global land datasets using Landsat …