YOSEMITE NATIONAL PARK, Calif. (AP) — An out-of-control wildfire burning in remote, steep terrain near Yosemite National Park has grown and is still threatening more than 2,000 houses, hotels and camp buildings, the U.S. Forest Service said Wednesday.

The blaze in the Stanislaus National Forest grew overnight to more than 25 square miles and was only 5 percent contained, Forest Service spokesman Jerry Snyder said.

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The fire has burned 16,228 acres and is five percent contained, CAL FIRE reports.

The following areas are under an evacuation advisory:

  • San Jose Family Camp
  • Yosemite Riverside Inn
  • Spinning Wheel area
  • Rainbow Pool
  • Buck Meadows
  • Yosemite Vista Estates
  • Ferretti Road to Clements
  • Camp Tawonga
  • Berkeley Family Camp
  • Harden Flat
  • Naco West
  • Yosemite Lakes RV Park
  • Evergreen Lodge
  • Pine Mountain Lake

A number of camps have also been evacuated, including Camp Tawonga, San Jose Family Camp and Berkeley Camp. About 200 senior citizens and a few dozen staffers were also evacuated from Camp Mather, which is owned and operated by the city of San Francisco.

The fire, which started on Saturday for unknown reasons, has already destroyed two residences and seven outbuildings, and about 2,500 structures were under threat in the community of Groveland, Snyder said.

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State Route 120 was shut down in both directions for a 4-mile stretch, blocking traffic in and out of Yosemite on its west side, but the park remained open to visitors via state Routes 140 and 4.

About 850 firefighters were working the blaze, aided by aircraft.

Copyright 2013 The Associated Press.