Zion Park names California, Nevada hikers killed in flooding

A cadaver dog swims through mud and debris during a search for the remaining victim of a flash flood Thursday, Sept. 17, 2015, in Hildale, Utah. The flood water swept away multiple vehicles in the Utah-Arizona border town, killing several people. (AP Photo/Rick Bowmer)

ZION NATIONAL PARK, Utah (AP) — Hours after rescuers traversed a 100-foot drop into a rugged Utah area to find the seventh victim of a flash flood, Zion National Park officials released the names of all those killed.

The hikers — six from California and one from Nevada — died when fast-moving floodwaters rushed through a narrow park canyon Monday afternoon.

Late Thursday night, the park listed the California fatalities as Mark MacKenzie, 56, of Valencia; Linda Arthur, 57, and Steve Authur, 58, both of Camarillo; Gary Favela, 51, of Rancho Cucamonga; Muku Reynolds, 59, of Chino; and Robin Brum, 53, of Camarillo. The seventh flooding victim was Don Teichner, 55, of Mesquite, Nevada.

Park officials said Linda Arthur’s body was found earlier Thursday a few miles from the sandstone gorge where the group got trapped during a violent rainstorm, in an area that had been unreachable previously amid fears of more flooding. The rest of the victims were found earlier this week.

Some in the group were new to rappelling and were swimming through narrow canyons in a sport called canyoneering, but park policy prevents rangers from assessing their skill level or stopping them from going, even after repeated warnings of the flood risk Monday.

The park is investigating what led to the deaths and reviewing its policies, but the process for canyon entry permits is decided at the national level and any changes would likely need to come from the top down, park spokesman David Eaker said.

“Our heartfelt sympathies go out to those affected by the flash flooding in Keyhole Canyon,” Superintendent Jeff Bradybaugh said Thursday night. “The canyoneers along with their families and friends are in our thoughts.”

The flash flooding also killed at least 12 other people, including nine children, in a nearby polygamous town on the Utah-Arizona border. Raging waters swept two cars downstream, leaving a 6-year-old boy still missing. Three other children survived.

Authorities in Mohave County, Arizona, said Thursday they were searching for a 33-year-old man from the area who has been missing since the flash floods hit Monday. Ryan Mertlich’s car was discovered heavily damaged in a flood plain about 15 miles west of Colorado City.

Mertlich’s family reported him missing Tuesday, saying he typically drives the back roads in the area, said Mohave County sheriff’s spokeswoman Trish Carter.

North in Zion, the seven hikers were clambering through a popular canyon when a deluge seen only once a century unleashed a wall of churning water. The flooding likely rushed over their heads in moments and carried them miles downstream, Eaker said.

“It would be just like a drain, it just funnels down in there very quickly, very fast,” he said.

Officials believe the group entered Keyhole Canyon late Monday afternoon, after some of those new to canyoneering took a course, he said. The route is considered entry level, according to canyoneering experts.

In an earlier identification, the Ventura County Sheriff’s Department in Southern California said Sgt. Steve Arthur and his wife Linda were part of the group.

Only 80 people a day can visit Keyhole Canyon. The group was told of the danger of flash flooding when they got their entry permit, a common warning during the rainy season, park officials say. They decided to go anyway.

Rangers closed the park’s canyons after the storm hit, but there was no way to warn those already inside the majestic slot formations, which can quickly fill with rain water and leave people with no escape.

Aside from one spot near the entrance of Keyhole Canyon, “there really is no high ground. You’re in a slot pretty much the whole way,” Eaker said.

Exploring slot canyons found in the desert Southwest can require a combination of hiking, climbing, swimming and caving. Canyoneering has grown in popularity in recent years, attracting people who enjoy the challenge and the beauty of the canyons.

Even a small amount of rain can turn a trip deadly as the moisture runs off the desert landscape and fills the canyon with water, branches, rocks and debris.

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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