19-year-old Utah hiker who inadvertently filmed her own death after setting up her phone to record beside the river she drowned in is identified

A 19-year-old hiker who tragically drowned in a Utah waterfall and accidentally filmed her own death has been identified.

Cynthia Ann Grimwood of Springville went hiking with her dog around 3 p.m. Friday afternoon at Horsetail Falls in Alpine and was swept away by the fast current after falling into the swollen river.

Two hikers found a small dog and her cellphone that captured the teen walking in the water before she disappeared, Utah County Sheriff's Sgt. Spencer Cannon told KSL.com.

The water level was “abnormally high” that day and authorities called the young woman's death a “tragic accident.”

Cynthia's body was found Friday evening two hours after the tragedy. Several search and rescue teams were mobilized to find the teenager's remains. His body was found on Saturday before his identity was confirmed on Monday.

Cynthia Ann Grimwood, 19, of Springville, Utah, went hiking with her dog around 3 p.m. Friday afternoon at Horsetail Falls in Alpine and was swept away by the fast current.

A photo of Cynthia holding a daisy

Authorities said the creek was swollen with runoff near Horsetail Falls in the mountains above Alpine in Utah County during Cynthia's fateful hike. Horsetail Falls is about 35 miles south of Salt Lake City.

The two hikers, who found Cynthia's belongings and dog, were concerned that someone had fallen into the water of Dry Creek and was in trouble and called the sheriff's office.

Once they viewed the video on the teen's cellphone, showing her near the water before she was swept away by the strong water flow, officials said in a statement.

The Utah County Sheriff's Office of Search and Rescue (SAR) responded to the scene, along with firefighters from several different agencies across northern Utah County who specialize in water rescue missions.

A Utah Department of Public Safety helicopter also assisted in the search.

Authorities said the water level was “abnormally high” that day and called the young woman's death a “tragic accident.”

Cynthia's body was found approximately 100 meters below Horsetail Falls, trapped under trees submerged in the water.

Cynthia is pictured here with a friend or relative

His body was found about 100 meters below Horsetail Falls, trapped under trees and submerged in water.

“The area where the victim was stuck in the water was filled with heavy runoff of melted snow and conditions were dangerous.” The steep rock walls surrounding the area make access very difficult,” officials said.

Search and rescue teams waited until Saturday morning to recover Cynthia's body, because recovering it early posed a great risk.

Search and rescue volunteers remained at the scene overnight to monitor the body until they could transport it to the medical examiner's office.

The autopsy has not yet determined the cause of death.

The blue-eyed, brown-haired teenager was a talented athlete, who had played second base, third base and shortstop on the Springville High School softball team.

The crews expressed their condolences to the young woman's family.