posted on Jul, 12 2012 @ 04:33 PM
I live within 100 miles of Roswell and enjoying going there every once in a while. As others have pointed out, the green circles are due to circle
irrigation systems, in which a well is sunk the the middle of a field, the circle irritation is attached, and it goes round and round.
The half circles are the same principle, but they don't have enough room on the land to do more than make a half circle.
They appear to really stand out because Roswell sits in the middle of a desert, so when water is applied to crops, they really turn green. This
picture was obviously taken during a time of drought in which the desert is dead and brown. If another picture were taken today, the surrounding land
would look a bit greener because we've had some rain lately.
Besides, the actual crash in 1947 supposedly happened not in Roswell itself, but rather many miles away in the middle of nowhere, but Roswell AAF was
the nearest military facility to handle it.