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.
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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."