I have a little hand held GPS unit made by Garmin that I bought on ebay for $50.If I was going out into the middle of nowhere I'd be damn sure to have it with me...with at least two sets of fresh AA batteries.
Handy gadgets and huge time savers when they work. Do you know how to use it?
Plus bring a cell phone and keep it in a water proof bag. Read stories of people getting hurt or lost in the back country and being able to make a call and give the authorities their GPS coordinates.
Technology can be a life saver when it works.