Above advice is good. However, I had some custom maps made this last year before my hunt to a new area. At MyTopo.com you can custom make a map exactly where you will be. You can change it as to location and detail (1: 100,000, 1:24,000, even 1:8000). Then they print it on waterproof, tearproof paper. It was about $15 for the map and shipping. This is more expensive than government maps, but this kind of website is about the only way you can get a custom topo map unless you get a software package. they even put your name on it and fold it in such a way that it slips in a back pocket.