I would say the restriction against a cell phone is silly. In a real situation if you have a cell phone, it's the first thing you'll use. You are of course not guaranteed that it will work. What about other radio signal devices, EPIRB, satellite phone, 118(?) mhz locator beacon, etc.? For that matter even an FRS radio. And how far are you from the nearest town and so forth? You're 180 miles from a major highway, but I presume you got there by road.