The one essential thing I am carrying these days whether hunting, fishing, flying or whatever is my SPOT satellite tracker. If an emergency occurs and I am not in cell range or don't know exactly where I am then the SPOT can be a life saver. It has several nice features but most important to me is the "SOS" button. If I press it then a message is relayed to the SPOT control center giving my exact location and they will immediately contact the appropriate emergency responders and family giving them my exact location. Then I just wait--they will be there. And it's good anywhere in the world. If it is not an emergency I can also press another button that sends a message to contacts I've listed saying, "I'm O.K., send help". Or, I can simply press another button which allows my contacts to follow my progress on a map. Sure beats a cell phone, assuming you even have coverage, where you'd say something like, "well, I'm about 20 ish miles south of Podunk Junction with a broken hip laying in tall grass...."
Never have had to use it, thank God, but it is there just in case.
Here is a link to their site:
http://www.findmespot.com/en/
