My favorite tactic to ensure that there are birds in an area that I think looks good via satellite imagery is to get on Google maps, click on the nearest business (to get contact info) and call them. Especially in the very rural areas of western states, these folks are eager to talk to anyone about anything. Because, in most cases, these folks are not turkey hunters, they'll tell you all you need to know about the area and the local turkey population. I can usually go to a new area and get on birds the first day due to this.