> [color:"green"]She went out into wilderness alone.[/color]

Risky, perhaps, but I wouldn't say it was wrong.

> [color:"green"]She did not tell anyone where she was going or when she would return.[/color]

Did that matter here? If she had told someone, should she have sat and waited for rescue?

> [color:"green"]No mention of use of maps or GPS to confirm her direction of travel.[/color]

Did that matter here? I see no indication that she ever got lost or travelled in the wrong direction.

My main query is whether she would have benefited from a mobile phone. I'm guessing she was out of signal when the accident happened, but by the time she got back to her car she surely could have called for help.