The fast-spreading Ferguson fire — which has already burned some 47 square miles and claimed the life of one firefighter — is now threatening Yosemite National Park, one of the most-visited of America's parks. Pictured here, an air tanker drops retardant while battling the fire in Stanislaus National Forest, near #Yosemite. Visit the link in our bio to see photos of the blazing threat. _ 📷: Noah Berger/AFP/Getty Images | #FergusonFire #Fire #Wildfire