I use a Garmin Summit HC and a program called Terrain Navigator. I can download my tracks and waypoints and study the terrain of the areas I hunt on.

I also order maps from MyTopo.com. they are laminated foldable maps and you can order photos also. You can transfer the data from the program on to the maps for field reference, or studying them at home.

Another thing I utilize is he UTM grid instead of the Latitude Longitude system. It is easier and much more accurate.