I primarily use mine for deer hunting purposes,I used to use a compass solely but my Uncle planted the GPS seed and I cant even begin to list the uses I have for this unit.I often go cross country in areas that I hunt looking for natural funnels or pinch points, if you will, that might afford me with a good treestand location for bowhunting.The problem is that most of the great areas are far from any trail or road,and getting to and from in the dark proves difficult at best.Theres a state park here in NH that is for bowhunting only and is about 3500 acres,I have that area mapped out very well and about 12 treestand locations setup and the GPS makes it a snap to get to and from them in the dark.The longest one is about 1/2 mile,and the real problem starts when I shoot one at dusk,makes for a long hard drag out to the trail in the dark,then another 1/2 mile to the truck.But the taste of Venison makes It all worth while.