Wyoming has 10,995,000 acres (4,450,000 hectares) of forested land, equal to 17.8% of the state's land area. Of this, 5,739,000 acres (2,323,000 hectares) are usable as commercial timberland. As of 2001, the state's four national forests—Bighorn, Bridger-Teton, Medicine Bow, and Shoshone—covered a total of 9,238,000 acres (3,739,000 hectares). In 2002, lumber production totaled 230 million board feet. Ponderosa pine accounts for about 50% of the annual cut, and lodgepole pine most of the rest. The remainder consists of Douglas fir, larch, Engelmann spruce, and other species.