When lost in wilderness:
- Go downhill until you come to running water.
- Go downstream until you come to habitation.
In America a very few years ago, a remarkably stupid woman tried to hike the Appalachian Trail, got lost, and got no signal on her cellular phone-set. So each day she hiked up a mountain to try to get a signal, and then each night she hiked down to her camp, until she ran-out of supplies and died.