Yosemite National Park officials are investigating after a 29-year-old woman tragically died in a freak accident. Angela Lin was hiking with her boyfriend and two friends along the Tuolumne Grove trail when they heard a loud sound from above.

Angela Lin, 29, was out with her boyfriend in the Tuolumne Grove area of the park on the afternoon of July 19 when the incident occurred

Back in August 2015, two high school students were asleep in a tent in the Upper Pines Campground when an oak limb fell, killing them both. And in 2012, a concessions worker was killed when a tree fell on his tent cabin during a windstorm.