Spring is here; soon it will be warm enough that many people (and their dogs ) will be going out into the mountains and lakes to go camping. I think that dogs love to go along when we go places like camping; but they can also wander off into the woods and become lost, and then are very hard, if not impossible, to find again.
When a dogs wanders off in town, you can drive up and down the streets and probably find them; but if they are out in hundreds of acres of forest, then it is not very likely that you will find them before a predator (like a pack of coyotes) gets your puppy and kills him.
One way to protect your dog is to have a tracking collar for them. It has a GPS built in to the collar, and if your dog is out wandering and gets lost, you can just tell exactly where he is at.
I can also see this as being a great thing to have for hunters, who take dogs along to help hunt in the fall. They are pretty expensive, at least in my budget; but would be very much worth it if you have a dog that is apt to wander, and you are out camping a lot in the summer months.