Thanks Mitchel....I really don't know what a bench is or what side the gold collects on a wash. Yesterday a tried a deeper wash with lots of gravel. I look mostly on the sides of the washes up next to any bedrock and cracks in the bed rock. I found small pieces of lead, cans, foils and bullets but no gold. The ground seems to be very mineralized with lots of hematite (blood rock I believe) in spots, so Auto or Auto + has been difficult. Manual 6 seem to quite things down quite a bit.
I want to thank everyone for there replies and encouragements. I am off to try again this morning. I have never been to Arizona before and the beauty of the desert is stunning. I also love looking a all the different types of rock. Gold detecting gives me something to do while I winter here for the next 3 or 4 months. Thanks again everyone