https://www.mercurynews.com/2022/07/11/yosemite-blaze-was-a-human-start-fire-park-superintendent-says/

OAKHURST – The Washburn Fire burning in Yosemite National Park’s southern edges was caused by a person, officials said.

“There was no lightning on that day, so it’s a human-start fire and it’s under investigation,” Park Superintendent Cicely Muldoon said at a community meeting Monday evening. “That’s all I can really say about that right now. We’re looking at that real, real hard.”