Not only are Topo maps good for finding your way around, they are also an excellent pre-scouting tool - especially in an unfamiliar area. Eders.com has some great articles on how to use the maps to focus your scouting and hunting to better your chances.
For example, I hunted in a WMA in East Central Missouri, just North of Bowling Green. I hunted there 2 years without even having a shot opportunity, even though there were a lot of hunters to keep the deer moving. Prior to the 3rd year, I studied maps I got from
www.topozone.com and found a spot where a N-S ridge intersected an E-W ridge forming a saddle, the Eders site said was a common travel corridor. Result, I took a nice 7 pointer with my TC on the first day. I could have held out for a better buck, but you know what they say about a bird in the hand...