MidwestJ hit the nail on the head. Here is the link I would use, http://terraserver.microsoft.com/, if I were in your shoes. The best way to scout without spreading scent all around. You can toggle between topo and aerial photos. Look for funnels, water sources, saddles and swales in the topography. Once you settle on some prime areas then do some low impact scouting to confirm what you see from the photos. Good luck!