Body of Arizona woman, 33, found after getting swept up in flash flooding at Grand Canyon

The body of an Arizona hiker who went missing for three days after getting swept into a creek during a flash flood at the Grand Canyon National Park has been discovered on Sunday.

Search and rescue crews have been looking for 33-year-old Chenoa Nickerson, who is believed to have been hiking with her husband in Havasu Creek - less than a mile from where it meets up with the Colorado River - when the flash flood struck on Thursday afternoon.

Nickerson's body was ultimately found by a commercial river trip near river mile 176 in the Colorado River at around 11:30am on Sunday morning, the National Park Service said in an update.

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Park rangers responded and recovered the body, which was transported to the rim by helicopter and transferred to the Coconino County Medical Examiner.

The National Park Service and the Coconino County Medical Examiner are conducting an investigation into the incident.

Nickerson, who hails from Gilbert, Arizona, was not wearing a life jacket when she got swept into Havasu Creek.

The flash flood hit the park shortly before 1:30 pm on Thursday, trapping several hikers both below and above Beaver Falls, a series of waterfalls in the Havasupai Indian Reservation.

Arizona Gov. Katie Hobbs has issued earlier this week an order to activate the Arizona National Guard and deploy a UH-60 Blackhawk helicopter to assist search and rescue crews.

The helicopters helped evacuate 104 tourists and tribal members of the Havasupai Indian Reservation from flooded areas of the canyon as of Saturday afternoon, according to the Arizona National Guard.

"My heart is with all of the people impacted by the flooding in Havasupai, including tribal members and visitors to the area," Gov. Hobbs said in a statement.

"I am closely monitoring the situation and we have deployed the Arizona National Guard to get people to safety. The safety and security of Arizonans and all those who visit our state is always my top concern, and I’ll continue working closely with leaders on the ground to protect the Havasupai community."

One of the standed hikers was Nickerson's husband, who was safely rescued by rafters after also getting swept away in the flash floods, the missing hiker's sister, Tamara Morales, told the outlet.

The search for Nickerson - described as a white adult woman standing at 5 feet and 8 inches, weighing about 190 pounds, and have brown hair and blue eyes - was focused in the Beaver Falls area of the Grand Canyon.

She was last seen wearing a black tank top, black shorts, and blue hiking boots.

The search and rescue operation involved a combination of aerial, ground, and rescue vehicles searching along the confluence of Havasu Creek and the Colorado River.

Nickerson had been staying at a campground near the village of Supai on the Havasupai Indian Reservation, which is located near the ravine of the canyon, according to park services.

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In a statement on Facebook, Nickerson's sister praised the search and rescue crews for "utilizing every resource to find our sister and to rescue the hundreds of stranded campers."

"We are profoundly grateful for you and fully acknowledge that you are currently defying the impossible," Morales wrote.

Morales also posted a photo of her sister posing with her husband at the base of the river canyon, dressed in a black tank top and blue hiking boot worn when she disappeared, with what appeared to be an electronic wristwatch or fitness device on her right wrist.

Morales noted that her sister also has several tattoos.

The Havasupai Tribal Council announced on Saturday that it had closed its lands to tourists until further notice due to extensive damange from flooding to the campgrounds near Supai.

"The Tribal Council's focus is the health and safety of the tribal members and those that provide services in Supai," the council said in a statement.