This area of Shannon road can be approached either from turning north off of Ina or continuing northbound on Shannon from Orange Grove Rd. in Marana. Each direction starts as a 45 mph zone at the top of the hill and turns into 35 mph as you go down the hill. There is only one through street along this section which is at the bottom of the hill. The sheriff department officers sit on this road (which also happens to be directly opposite a sheriff station behind the local library). Although I had seen them there before, I was caught one day by an officer sitting behind a tree at the bottom of the hill. I was caught off guard, thinking I was only speeding about 4 mph over until the officer told me that the limit was 35, not 45mph. He didn’t even check my insurance or registration as he handed my ready made ticket with all info about the area printed by computer and my personal info handwritten. When I checked the area later I counted only 1 sign showing the mph change from 45 down to 35 before I was pulled over. Pretty good setup for them, if not lazy!