KIMBERLY - Heat and strong evening winds hampered firefighters' efforts to control the McGinnis Creek Fire near Kimberly this weekend.
The fire grew to 2,817 acres by Sunday morning, July 26, the Northwest Area Coordination Center reported.
The cause of the blaze, which broke out Friday, remained under investigation, Oregon Department of Forestry officials said.
The fire burned in grass and juniper, threatening 76 buildings in the area.
The ODF said the fire was just 20 percent contained by Sunday morning, as more crews were being dispatched to the area.
Three helicopters, 332 fire personnel and 24 engines were working the fire .
Meanwhile fire crews battled another fire in the region. On Sunday, the Cougar Creek Fire was estimated at 100 acres in the Strawberry Mountain Wilderness, south of John Day.
Rappel crews and smoke jumpers were dispatched to battle the blaze, which broke out in brush and juniper and steep terrain.