I agree...Been hunting both our properties for not quite 20 years now, and I could probably maneuver through both of them with my eyes closed. Love it!
It's easy to lose your sense of direction on a cloudy day after walking through the woods for hours. I'm kinda old school and not big on compasses or gps unless its an emergency. Many areas I hunt don't have roads, atv trails, etc..., only the trails made by the wildlife. Recognizing the smallest landmark such as a unique tree trunk, or a tree species that is very scarce on the land, or even an old 2x4 nailed to an oak tree 40 years ago as part of treestand can be immediately be of assistance. The guy who power walks through the woods with his rifle slung on his shoulder will not notice these subtle landmarks. The less time you spend trying to figure out where you are and/or looking at your compass/gps, the more time you have to hunt!!!
The other benefit I forgot to mention in my original post was that if you really know your property and happen to see a deer but do not get a shot off, you should have the ability to predict what the deers next move will be. Is it headed towards an area where it will lay? Is it going to continue on its current direction to escape? Is it going to circle back around because of terrain, etc...? The hunts that I'm most proud of are the times when I have spotted the deer first, then eventually harvested them, sometimes hours later. And this is in the thick woods, not in open field stalking situations. Without the "knowledge of the woods" I never would have been able to turn these missed opportunities into successful hunts.
It only takes one deer to change a hunt from disappointing to very satisfying.