Basically how deep are you taking samples from. Just read "Where's the gold" in March April Gold prospector mag. Think like you're looking at a sluice definitely got me rethinking things. I could definitely see it in that photo. Next years visit to Arizona will definitely will be a new start on my way of searching. Are you sampling the surface, or digging out a good deep shovel full. Changing from Stream tactics, to the Desert way of thinking is sure different. Hope to see you at the Gold show in Columbus , Ohio in May.