Those UAC photos brough back a repressed memory.
I had a big scare at the same place. I was nearly caught in a slide in silverfork back in the day 95 or 96 ski season. I was touring with Mike from the Peruvian lodge, and my brother Brian. Same circumstances but well into winter. Feb or March. We had hiked up flagstaff and did a run down the east facing lower angle portion of the bowl. We had finished our run and chose to access the ridge by hiking up (booting) the same path Steve Lloyd and Jason West took. Upon nearing the ridge another party had reached the top from Alta and was preparing to descend. Not sure if they ever saw us hiking up near the rocks in Upper Silver Fork before they descended. One person in the party decided against hucking the cornice that was built up and traversed across slope in the wind loaded area just below it. This caused a wide spread avalanche that kept propagating towards us the further the skier traversed. The Trigger Causer was able to arrest himself or herself at the crown face and the propagation towards us stopped. All we could do was watch in wonder at the avalanche. No one was caught in the slide from either party. We were less than 50 feet from the one flank of the avalanche. We hiked up the slide path and counted our blessings. We never encountered the other party that day to "Thank them for scaring the shit out of us"