I hunt an area in a river swamp that is about 10 miles from the nearest house. I was woodcock hunting 3 years ago alone and with my older dog. I had gone out in a cane thicket about a half acre in size, 200 yards from my truck. I had put the keys in my shirt and zipped it up or so I thought. When I got back to the truck, I couldn't find the keys. My vertically slit pocket was open. I went back to the thicket and looked around for the keys. Nada. I was about to walk out at dusk and decided to go back out and look again. I found them in the middle of the patch. They fell out when I was moving through the cane. Wish I could say it was when I bent over to pick up a bird. I have considered buying a small handheld single-side band radio. I am a licensed amateur radio operator (ham). There are relays that pick up weak signals on these handheld radios and relay them. My key loss wouldn't justify an epirb use, but the handheld could've contacted home to bring keys. Haven't moved on the hand held radio, but zip tied an extra key to the frame of the truck. Magnetic boxes are useless on bumpy roads. I also make sure the pocket is zipped.
