Michael Wilhoit, a 53-year-old Oklahoma City man, his daughter and her boyfriend were found safe after being unaccounted for following a deadly Grand Canyon flash flood.

Family members confirmed Sept. 1 that Wilhoit, his 30-year-old daughter Mystic Wilhoit and her boyfriend Dylan Neusom were located, KOCO reported. The three had been among roughly 15 people initially unaccounted for after a wall of water tore through the Bright Angel Canyon and Phantom Ranch area on Aug. 29.

Shannon Cahill, Michael Wilhoit's sister, told the Associated Press on Aug. 31 that she had not heard from any of them since they left for a three-night camping trip Saturday. Phone calls went straight to voicemail. No one had posted on social media.

"That's not like Mystic. If she's doing something, she's posting. She posts constantly," Cahill told the AP.

Cahill said she did not know where the group planned to camp. Mystic Wilhoit and Neusom both live in Arizona, according to a family member who spoke with KOCO.

The flooding struck around 2:30 p.m. local time Saturday, killing two people and triggering a massive rescue operation. Witnesses described a 15-foot wall of water sweeping through Phantom Ranch, destroying footbridges, an excavator and entire buildings just minutes after evacuees crossed to safety.

Park officials said 82 people were rescued or evacuated over the weekend. Incident Commander Dave Black said 45 were pulled to safety by sunset Saturday and 37 more were evacuated Sunday. By Monday evening, Black said only one person remained unaccounted for.

Two men died in the flooding. The bodies of John Giusti, a Texas chiropractor, and Brent Rosenkranz, 42, a martial arts studio owner, were recovered, according to the AP. A third member of their group, Timothy Smith, 53, a Wyoming pilot, remained missing as of Monday evening.

The floodwaters also destroyed nearly all footbridges spanning Bright Angel Creek and knocked out the park's Transcanyon Waterline, the only pipeline serving Grand Canyon National Park. Officials estimated about 40% of the line was damaged or destroyed. The pipeline was already undergoing a $208 million rehabilitation project that started in 2023 with completion expected in 2027.

All overnight lodging inside the park closed Aug. 31 due to the water outage. The North Kaibab Trail, Phantom Ranch, and the Silver and Black bridges remained closed with no reopening date set.

The National Park Service asked anyone with information about hikers in the Bright Angel Creek corridor on Aug. 29 to call the NPS Investigative Services Branch (ISB) tip line at 888-653-0009 or email [email protected].

Grand Canyon Deputy Superintendent Brian Drapeaux said officials anticipate "miles of the pipeline being destroyed." A full damage assessment was not expected before Tuesday at the earliest.