Yellowstone National Park Worker Falls to Her Death From Cliff

The Grand Canyon of the Yellowstone River is 800 to 1,200 feet deep

A National Park Service employee fell to her death from a cliff in Yellowstone National Park in Wyoming, NBC News reported.

A helicopter search and rescue crew found the body of Estefania Liset Mosquera Alcivar, 21, below Grand View Point above the Grand Canyon of the Yellowstone River, according to a National Park Service statement.

Alcivar, a park concession employee from Quito, Ecuador, was with a group of coworkers when she tumbled from the edge of the canyon at about 3:15 a.m., her colleagues told police, according to the park service.

Park rangers and rescuers responded, but didn't find her body until it was daylight, the statement said. Crews concluded that the fall was "not survivable."

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