It may be good to know the Arizona cops have set up speed traps in this area. The limit starts out at 15mph then goes to 25mph then 35mph. Then back to 25 at a blind curve. I saw 5 cops w/radar guns and 2 cars that appear to be under cover cars w/their windows darker than the law allows a citizen too. Then it is 55 mph just before the blasting area.
STAY legal.