The Ferguson fire has been burning for more than a month, starting July 13 from still undetermined reasons, and has scorched 96,606 acres throughout the Sierra National Forest and in Yosemite National Park. While the fire never reached the landmarks of Yosemite, the smoke was so intense that the valley had to be closed during the peak of the summer tourist season, not only wrecking travel plans but also starving local businesses.
Source: Los Angeles Times August 15, 2018 12:00 UTC