The unidentified 40-year-old man was canyoneering through Heaps Canyon with three others when the incident occurred, park officials said. After a report of the fall was received Saturday, the Zion National Park Search and Rescue Team and the Washington County Sheriff’s Office arrived and attempted to save the man’s life.

A Utah Department of Public Safety (DPS) helicopter extracted the man, according to the NPS. It flew him to an area near Watchman Campground, where Hurricane Valley Fire and Rescue and Intermountain Life Flight continued to provide assistance, park officials said.

He was pronounced dead before he could be flown to a hospital.

The hiker’s cause of death is under investigation

“Our thoughts and deepest condolences are with the family and friends during this unimaginably difficult time,” Zion National Park Superintendent Jeff Bradybaugh said in a news release.