YOSEMITE NATIONAL PARK -- A wildfire continues to burn in Yosemite National Park.
The Pika Fire is believed to have been sparked by lightning on June 29.
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It has since grown to 818 acres with zero-percent containment.
Fire crews say the flames have been moving slowly.
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Some trails remain closed to the public including sections of the North Dome and Lehamite Creek trails.
You're advised to check the air quality and closures before taking a trip to the park.