On May 9th, my party was involved in an extraction in Chambers Canyon (S. Fork Bull Canyon). We encountered a separate party that had begun the canyon before us. A member of their group had become stuck in one of the more difficult sections of the canyon. They had foot loops and handlines for the stuck person, but she was very stuck. We initiated a response by one of our party of two climbing down the difficult squeeze chimney to help push her back up canyon, while we provided foot loops, a shoulder loop from above, and a hand from up-canyon. After about 1 hour of micro movements, heavy coaching, and direct pushing/pulling, we were able to free her. At that point, it was a tough decision as to the most prudent course of action. I felt comfortable continuing with the resources we had, although I did consider calling for outside resources, but decided not to because of the stability of the situation, the time delay involved with getting SAR on scene, and the serendipity of having ample technical gear to manage the terrain. Due to the difficulty of protecting the crux narrows section, we decided it would be better to go up canyon rather than down canyon. After returning from my vehicle with ropes etc., I was able to located some bolts placed from previous rescues, and use these to build systems to provide belays/handlines/haul the remaining members up the jumps to a confluence with a side canyon. The last obstacle up the side canyon was managed with natural anchors using a belayed upclimb/uphaul system. Soooo, my biggest thought and/or question for the community is: 1) How can we better communicate the risks involved with this particular canyon (there are many examples of people becoming stuck in this canyon)? 2) Would a well placed bolt protect the crux narrows section and/or help in future rescue situations in this canyon? Thanks for your thoughts!