The Bitterroot National Forest is closing the Sam Billings Campground and access road starting about July 9.

The closure will also affect the Boulder Creek Trailhead and Boulder Creek Road. No motorized or non-motorized used will be allowed (that includes hiking).

The area has been hit hard by the Mountain Pine Beetle, and dead and infested trees will be cut down during the month of July.

The removal of the trees will help strengthen the remaining trees against future beetle attacks, officials say.

They also have treated about 150 susceptible lodgepole pine trees, white bark pine and ponderosa pine trees in the campground with the insecticide Carbaryl.

While the campground is closed, the USFS suggests the Alta and Rombo campgrounds and Painted Rocks State Park, all farther south on the West Fork Road.