Is it possible to hunt and track with a GPS. If I have an acre of land in a wooded hilly area. Is it possible to hunt 1/3 and keep track where you where, plot it and then come back to the site and continue the search hunting another 1/3 and plot that to a map and continue doing this till completely done searching a predetermined area? If so what equipment do I need? How accurate and percise can this system provide? Will I be able, just with the GPS, to find the exact spot and begin again within 1 ft. 5 ft or 30ft. from where I left off?