Getting back to the original topic, several of the articles I read indicated (and the location where she was found confirms) that when she left her husband and kid to go for help, she walked SOUTH. The ONLY thing south from where they were is the Grand canyon, and (if she could find it) the North Rim ranger station, hotel, and shop. All of which are closed until April or May. The only possibility of help would have been to head NORTH and find US 89A, the highway that runs across that part of AZ. Heading south defies logic.
Did they really not know the North Rim closes for the Winter?