A female climber in her 20s was bouldering at the base of Ha Ling Peak, near Canmore, on March 27. A piece of the boulder detached and crushed her pelvis. She was evacuated from the scene utilizing a wheeled stretcher.

ANALYSIS

The climber failed to test her holds. Much of the Canadian Rockies is soft lime- stone, which is susceptible to frost jacking during the seasonal freeze-thaw process. This is true whether you’re climbing alpine walls or the boulders at their base.