I have the Garmin Vista and it is loaded with all the state topo maps I hunt. Nothing like it. I am an old time hunter and still use my compass and pay attention to where I am. The GPS is a great backup and safety valve. Because it is a tool I don't rely 100% on it in case of a failure. I always carry spare batteries in my survival pack. I hunt the vast woods of northern Maine, Vermont and New Hampshire. There is no room for error especially at the end of the day. This year I will be in the ranges of Colorado for the first time. My Garmin will be loaded with all the necessary topo's to give me the edge. I can look at the topo and pan to a sag in the mountain and the unit tells me what heading and distance even if I can't see the sag. If I get turned around and come to a large river or road the unit tells me the name. If I drop the big one and need help to get it out I dress it out cover it with spruce bows, leave a smelly undershirt to keep the yotes away, lock it in and then go get help. I can walk right up to it even if it is miles from the truck. My group carries radios and if someone needs help with a drag we radio the coordinates and help soon arrives. Once you get used to it there is nothing like it.