I read these stories of lost people in the forest and how long it can take to find them. I think the rescuers should air drop brightly colored packages that contain a cell phone with GPS, simple instructions, food, water and a long warm jacket appropriate for the weather. Bells that ring in the breeze outside the package, or the cell phone ringing, would attract the lost person’s attention. And maybe a noise maker of some kind, like a whistle or bell for the lost person to guide rescuers. The helicopter dropping them should be able to record approximately where they went down, and they could have a beacon, so the extras can be retrieved later.