The datasets you pick from can be a bit confusing unless you click the (!) icon next to the names to figure out what they are.
I'll provide an example for looking at reconnaissance satellite images of Atlanta, Georgia in 1979.
Search Criteria (tab):
Find Atlanta, Georgia on map. Zoom in on Atlanta, Georgia. Click on a building like the "Fulton County Courthouse" or "Atlanta City Hall" (does not really matter, but somewhere near them).
I lived through the madness of Atlanta in the 1970s. The pace of sub urban development seemed to rival 21st century China in its consumption of concrete and steel.
https://earthexplorer.usgs.gov/
The datasets you pick from can be a bit confusing unless you click the (!) icon next to the names to figure out what they are.
I'll provide an example for looking at reconnaissance satellite images of Atlanta, Georgia in 1979.
Search Criteria (tab):
Find Atlanta, Georgia on map. Zoom in on Atlanta, Georgia. Click on a building like the "Fulton County Courthouse" or "Atlanta City Hall" (does not really matter, but somewhere near them).
Date Range: 01/01/1970 - 01/01/1980
Data Sets (tab):
Declassified Data -> [check] Declass 3 (2013)
Click "Results".
Click one of the results.
Example image: May 15, 1979 - https://i.imgur.com/DXYxWXP.jpg - 14,273 x 1,414 px