I work with historic aerial photos every day, spanning from the earliest USDA (ASCS & SCS) flights from the late 1930s to the latest NAIP imagery from this decade. To me it looks a lot like a drive-in movie theater. See the example in Englewood, CO.
-Neil http://maps.google.com/maps?q=Englewood,+CO&ll=39.655795,-105.006723&spn=0.007517,0.015044&t=k&hl=en
Anonymous
@ 2019-11-19 22:06:18
This was taken down sometime in the late 2000s, no remnants are there anymore.
-Neil
http://maps.google.com/maps?q=Englewood,+CO&ll=39.655795,-105.006723&spn=0.007517,0.015044&t=k&hl=en