I bet you that picture was taken in Arizona, somwhere between tucson and phoenix there was that field...close to another field which was a CIA base, im not sure of the names since i don`t have the charts here anymore, but I`ll look it up
That CIA field was Marana (AVQ), yes I got my charts out quicly, I can`t find the helicpoter strip, but it was definately between phoenix and houston