Hello all
I do not know if this has been posted in some segment.
I found it interesting these aerial photos taken of San Francisco Bay in April 1968, just before the activities of the infamous Z.
Share for those who are not aware of this link and also are somehow working on the "Z Map"
Just click on the red dot appears and the aerial view of the region at that time.
Marcelo
http://vm136.lib.berkeley.edu/EART/aerial2.html
http://vm136.lib.berkeley.edu/EART/AerialPhotos/airphotovbzj/
http://vm136.lib.berkeley.edu/EART/air-catalog.html
example