Most people carry the GPS more for data logging than navigating though. I carry mine just to log miles and give me some info to dork out to later on. I haven't used it for navigation at Boyette in over a year.
Now I had to use it at Croom once after taking some extra long detours checking out the enduro trails that lead off to the south. There are some pretty nice features to the west of the dirt bike/ATV area.