Several campgrounds within the Newberry National Volcanic Monument will close early for the season, because of a project designed to remove diseased trees.

The U.S. Forest Service announced Thursday that it will begin the “Shield” forest management project, where staffers will remove trees that show signs of future failure from disease and insect infestation within the Newberry caldera, as early as next week. The project is designed to remove trees that could fall near campgrounds or roadways in the future, according to a news release from the Forest Service.

Summer campsite reservations for East Lake campground will end Monday, though first-come, first-serve camping will still be available until operations in the area begin. Little Crater and Cinder Hill campgrounds will stop taking reservations on Sept. 3, though they too will be available on a first-come, first-serve basis until tree removal begins.

Trees in the Newberry caldera are at high risk for damage from insects like the mountain pine beetle and diseases like Western gall rust, according to the release. Staffers will continue removing trees through the fall at various campgrounds and roadways within the caldera.

Work is expected to continue through 2020, and may impact campground reservation availability next year, according to the release.