When checking the Weather Channel website for a 5 day Snoqualmie Pass report they included a scary video that a boarder took of himself getting stuck head first in a tree well. Thankfully he had a cell phone that made communication of his location known and subsequent rescue possible. This man is lucky...he thought he was going to die. Here is the video --- please excuse the commercial --- the video is really worth watching.
http://www.weather.com/outlook/videos/buried-alive-for-an-hour-20188