Well mytopo does that and the maps are very nice, there not free though. You can even get them in color.
I look at the over all area, farms, fields, roads. Find lands that connect by streams, ditchs, fence rows, ridges. Those dancing deer signs the state puts up to warn motorist are a welcome sign to me (not on the map though but something to look for from the map).
I also look at the deer/car accident reports. They tell a story and can be found in news papers. Have2 new area's to hunt that when I saw where they were a light went off instantly, lot of deer get hit in that area.
Scouted 5other places yesterday that I'd only seen on maps(I'd studied the topo's of eachalong with the state & county maps quit a bit before going).2 were not anything, 1 was down right scary, 3 dead deer right at the git go with the most recent looking like it had been shot with a high powered rifle, started getting the creeps walking around there. One had deer feeding in it (one of those dancing deer signs greeted me just before I got there
). Then there was one that was/is the silver tuna.[8D]
Fresh snow on the ground is another tool. Knew right where they walked.
Mapping question...
) do you personally look for on an aerial or topo, of a property you have never hunted? I know this will be a bit different for each person, given hunting styles and areas in the country, but that's why I'm asking it this way. I located this alternate entrance during gun season and it looks like a small pocket of public surrounded by private land. It was getting late by that time so we decided not to hunt it, but I'm thinking about giving it a go for bow this fall. 
