Page 2 of 2 Previous
Wildlife officials were also trying to monitor at least four bald eagle nests in the fire-stricken area.
While it has put a stop to some backcountry hiking, the fire has not threatened the Yosemite Valley, where such sights as the Half Dome and El Capitan rock formations and Yosemite Falls draw throngs of tourists. Most of the park remained open to visitors.
The U.S. Forest Service said the fire was threatening about 4,500 structures and destroyed at least 23.
Rugged terrain, strong winds and bone-dry conditions have hampered firefighters' efforts to contain the blaze, which began Aug. 17. The cause has not been determined.