Park worker falls to her death in Yellowstone canyon

An Ecuadorian woman has fallen to her death at Grand Canyon of the Yellowstone in Yellowstone National Park.

Twenty-one-year-old Estefania Liset Mosquera Alcivar was a park concession worker from Quito, Ecuador. She fell into the canyon at Grandview Point around 3:15 a.m. Friday.

Park officials...