The 26-year-old was rock climbing with two friends on Tunnel Mountain's Gooseberry route on Sunday afternoon when he slipped.
Lisa Paulson, a Parks Canada visitor safety specialist who was involved in the rescue, said the man was 150 metres from the ground when he slipped and fell 15 metres.
“He pulled off a loose hold and that caused him to fall backwards injuring his back and pelvis area," she said.
His friends called rescuers for help. Two responders who arrived by helicopter discovered the man dangling in his harness.
“They climbed up to just above where the injured climber was and built a bolt station, from which they could work from and prepare to sling the injured patient from that location."
The rescuers were able to fly the man off the mountain and take him to an awaiting ambulance.
Reaching this particular area of the mountain was a difficult task, she said.
"We're fortunate to have some very fantastic pilots that have incredible precision and judgement when flying us into locations on a mountain face."
Parks Canada helped a second man that evening near Lake Louise. A 25-year-old climber from Edmonton had dislocated his knee cap.
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