The woman was walking a 9-day long distance route moving north through the Eryri National Park. Her last known position was camping near the summit of Cader Idris on Sunday evening: some 40 hours previous, and she had failed to make contact from that point onwards.
Given the elapsed time, the potential search area was significant, and it was unclear whether she was indeed in any trouble at all. Enquiries were made with the national park ranger service with regard to abandoned tents in the area, but nothing conclusive was forthcoming.
The following day, one of the rangers reported the sighting of a lone female, well north of our area, who seemed to fit the description of the "missing" woman.
With a degree of evidence that the walker was no longer in our area, and she was potentially doing no more than having switched her phone off, or having a flat battery, the Team was stood down.