Quinn is a climbing ranger at Rocky Mountain National Park. On October 11, Quinn was climbing the Nose on El Capitan in Yosemite with her friend Josie. Just under halfway done, she fell while completing a section known as the Boot Flake. She fell approximately 100 feet and struck a two-foot wide protruding section of rock known as Texas Flake, and then fell into some boulders at the base of the flake. A helicopter rescue was performed within three hours of the accident.