Firefighters on Wednesday had brought the Trailhead Fire to 85 percent containment — a 60 percent increase from Independence Day.
The fire, in Placer and El Dorado counties, now covers 5,619 acres. It’s caused three injuries and threatens 2,600 buildings, though no structures have been damaged or destroyed, Cal Fire said.
The cause of the fire remains under investigation.
The blaze, in the middle fork of the American River, near Todd Valley, began June 28. At one point over 2,100 people battled the fire, though that number had dropped by Wednesday to about 1,600.
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