That's about 200km from my brother's fishing lodge. I've done some bush hiking in that area, at times you are walking into a wall of bushes so thick you can't past your arm and your feet are either stepping on roots or into the holes between the roots. It could take an hour to hike a 100 yds. Or you could be walking on granite ridges covered in lichen. Black bears, moose, caribou, wolves, eagles, wolverine are quite common in the area but the black flies will probably eat you first.

Usually, after 3 days SAR is looking for a body instead of a person. I'd say she was very very lucky.