Given the discussions we have from time to time on this list about historical imagery, I thought this new post on the GIS data blog of mine might be of interest:
50-60 year-old spy imagery as a source of historic data
https://spatialreserves.wordpress.com/2021/08/02/historic-spy-imagery-as-a-source-of-historic-data/
Joseph Kerski
Joseph J. Kerski, Ph.D., GISP | Education Manager
Esri | 167 S. Taylor Avenue | Louisville CO 80027-3025 | USA
T 909-369-8237 | M 303 625 3925 | jkerski@esri.com
THE SCIENCE OF WHERE ®
(Posted on the GIS Colorado listserve 8/3/2021)