Before a Florida woman fell 400 feet to her death at the Grand Canyon last week, she shared an image of herself taking in a spectacular view as she sat peacefully with her legs crossed on the edge of a cliff.

Colleen Burns, 35, posted the poignant photo to Instagram only hours before she accidentally stepped off an edge at Ooh Aah Point on Friday, about a mile down the popular South Kaibab Trail.

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Burns was with two friends on a vacation in Arizona and they were walking the trail to capture images of the sunset.

"She was stepping out of the way for another gentleman to kind of squeeze in, and unfortunately, Colleen kind of got tripped up on her own feet and fell backwards, fell into the canyon," her friend Jessica Roman told WESH-TV.

She added: "That was the longest, strangest, craziest two seconds of my life."

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Park rangers located her about 400 feet from where she had been standing and announced her death Monday.

The National Park Service and the Coconino County Medical Examiner are investigating the incident.

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Burns worked as a marketing director for Yelp in the Orlando area, and the company released a statement about her passing:

We are deeply saddened by the death of Colleen Burns, a cherished Yelp colleague and friend. Colleen launched the Yelp community in Orlando nearly seven years ago. Her passing represents a tremendous loss to our company, the communities she supported and the many friends she made while doing what she loved. We are heartbroken but thankful to have been positively shaped by her passion and joy for life.

With reporting from the Associated Press