11 and they are: Bitterroot National Forest Boise National Forest Caribou National Forest Challis National Forest Clearwater National Forest Kootenai National Forest Nez Perce National Forest Payette...
There are four Arizona National Parks.
There are eleven separate administrative sections of the U.S. Forest Service that have parts of them in Oregon.
There are many National Monuments and Forests as well as four National Parks, Grand Canyon, Joshua Tree, Petrified Forest and Saguaro National Park.
There are 193 million acres of Forest Service land.