The guy probably dropped it in the hole while icefishing last winter. Push the waypoint button for home and it will give you his coords for his house or ramp that he uses the most. If you still cant find him, fish some of the spots marked and chances are you'll run into him that way. That is, if he has a boat. If all the areas on the gps are within walking distance on ice, he probably only uses it in the winter, like i and others do. That will make it harder to find him. Try all these suggestions if you want to give it back otherwise just keep it. He's probably not a member here or he would have said something about losing it last winter.