The first time I did it, I ended up driving my Camaro down a dirt path, kicking up all sorts of rocks and nasty stuff. I never did find it, because I didn't have a GPS or anything even near adequate to take with me, but I DID see a bunch of other cool stuff including an EXCELLENT picture opportunity with the sun setting over a lake with the flag in the foreground.
EDIT: What I *did* bring was a scrap of paper saying "ten roads down, it's in the bushes on the right kinda deep". The only problem was, that this was so backwoods, that it was difficult to tell what actually counted as a road.
So a GPS is recommended. OR you can bring your laptop if you save the GoogleEarth image.