I am not sure that this was ever posted here, but I did come across the following accident report from July 2018. Good reminder to take a lot of care when scrambling up loose talus. And by the way, it seems that despite having his leg amputated, Adrien is back at it (http://www.cyclingnews.com/news/adrien-c...leg-amputation/).

From: https://www.gofundme.com/supportadriencosta

"On July 29, our friend and former teammate Adrien Costa was involved in a serious accident while climbing in Mono County, California. The incident occurred on the north ridge of Mount Conness, where Adrien was climbing at around 11,400 feet, near the base of the Conness Glacier. He was scrambling up a talus field to the base of the climbing route when a large rock, weighing around 4,000 pounds, gave way and pinned his leg against a boulder below.

Thanks to the efforts of two hikers who were nearby, the Mono County Sheriff’s Office Search and Rescue were able to locate Adrien, and after some difficulty launching their own helicopter due to heavy smoke in the area, they were able to free Adrien and evacuate him, with the help of a National Guard UH-60 Blackhawk that was close by on fire assignment.

When Adrien arrived at the Renown Regional Medical Center in Reno, he was in critical condition, but thanks to the hospital's medical staff, and the quick thinking of the hikers who first reported his location, his life was saved. Tragically, they had no choice but to amputate his right leg above the knee."
Strava, IG