I was walking a few properties last weekend and decided to use the "Map" App and see where I was.
I turned off the satellite view and it showed me the individual property boundaries. It just added another 200 yards of hunting territory for me because I thought it ended at a stone wall.
Its very accurate, I would guess its within 10 feet.
It showed the State Property boundaries as well.
If anybody needs help using it, just email me and I will show you how to use it.
Go to your APPS and look for MAPS.
Gps can show you your location within ten feet, only if the satellite reception is perfect. Leaves on the trees, clouds, overcast and obstructions can put you off by as much as fifty feet or more.
I've been using a Garmin personal GPS for geocaching and it tells you the present accuracy of your reception.
Wild Bill, that's a good point. accuracies on cell phones and handheld GPS units are decent. For hunting applications, they are good enough, ie finding stands, waypoints, features, trails, etc. Many factors contribute to GPS inaccuracies like multipath phenomenon, overall satellite positions (PDOP), and the software you use to acquire and/or download your data.
If you want surveyor-grade GPS units, it's gonna cost you tens of thousands of dollars. But gaining a couple hundred yards of extra hunting space can definitely be safely argued using handheld or cell phone GPS units.