Yellowstone Worker, 21, Falls Into Canyon To Her Death

Estefania Liset Mosquera Alcivar was socializing with a small group of coworkers when she fell from the park's Grand Canyon early Friday.

A Yellowstone National Park employee is dead after she took a fatal tumble from a park cliff.

Early Friday morning, Estefania Liset Mosquera Alcivar, 21, a concessions employee from Ecuador, fell to her death from Grand View Point above the Grand Canyon of the Yellowstone River. 

Watch: After Woman Falls To Her Death at Cliff, Experts Warn Against Flip-Flops

Her body was recovered just after 10 a.m. by park search and rescue crews in a helicopter. 

According to a park release, Alcivar was socializing with a small group of coworkers near the trail along the rim when she fell over the edge of the canyon at approximately 3:15 a.m.

Her companions, who witnessed the fall, dialed 9-1-1 and park rangers and paramedics responded. Rescuers were able to locate her below the rim at first light and determine that the fall was not survivable.

Read: Missing Professor Was Pushed Off Cliff Into 80-Foot Quarry: Cops

According to the park's website, the canyon ranges from 800 to 1,200 feet deep.

The incident remains under investigation.

Watch: Woman Once Suspected Of Killing Her Identical Twin Sister Is Now Busted for DWI