Nothing beats boots on the ground scouting, but here's my method for narrowing down the terrain. Get a topo and a recent satellite photo of the area. Take a red marker and trace all the roads, walking trails etc. that denote human traffic. Look at the topo and find ridges, saddles and other funnels. Now check those areas against the satellite photo and look for "dark" areas which typically means trees as opposed to grass/marsh. You want to see a nice thin line of dark between the light areas that coincides with elevation change. Mark these areas green on your map. Now look at these green areas and see if there are any obstacles between them and the red lines of roads that would prevent the average fella from getting to them. You want to hone in on the green zones that are either 1) deep in from the red lines, or 2) blocked by an obstacle (like a creek, open marsh, etc.) On public land I find better buck movement during daylight hours in these areas that are "blocked" from typical access, preferring two obstacles. Brothers and I played football so we call it "Cover two!"
Next put boots on the ground looking for rub lines, scrapes or even last years sign. Pick a tree and mark a trail out opposite of prevailing winds, (I like firetacks to get back in deep quickly without getting turned around).
I don't claim to be an expert and I'm no Wensel, but I've mostly hunted public land and done alright by using this as a general guideline. Good luck.