Authorities shut down a major highway Tuesday, keeping travelers far from the west entrance to Yosemite National Park so crews could battle a huge wildfire raging close to thousands of nearby homes.
Authorities said the blaze in a steep, dry river canyon had destroyed 25 homes and had forced the evacuation of 300 others in the Sierra Nevada foothill towns of Midpines and Coulterville.
An area of more than 46 square miles (119 square kilometers) of rugged terrain had burned since a target shooter sparked the wildfire on Friday. The fire was just 10 percent contained Tuesday morning.
Flames were about 12 miles (19 kilometers) from Yosemite National Park, which remained open and teeming with visitors.
Firefighters might get some help from a slight drop in temperatures, which were expected to remain in the high 80s Fahrenheit (around 30 Celsius) Tuesday, but accompanied by lower humidity and northwesterly afternoon wind, National Weather Service meteorologist Cindy Bean said.
Flames also threatened homes Tuesday in Montana, where authorities said more evacuations were likely.
A 10-mile (16-kilometer) stretch of California's Highway 140, which leads to Yosemite's west entrance, was closed until late Tuesday, fire officials said.
Other entrances to the park remained open, but some Yosemite visitors packed up and left campgrounds and other areas near the park.
At the peak of summer, as many as 4,000 visitors a day stream into the park.
Power has been out since Saturday in the park and in the outlying community of El Portal on the park's western boundary. Hotels in the area remained open, operating on generators.
Elsewhere, fire officials at Red Lodge, Montana, said Tuesday that evacuation of an additional 200 homes west of the ski resort town was likely because strong wind threatened to push a wildfire closer to the area. Ninety homes already had been evacuated.
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Associated Press writer Matthew Brown in Red Lodge, Montana, contributed to this report.
