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The national forest is home to some stands of old growth, including Port Orford cedar and Douglas fir in the Copper Salmon area. [8] A 1993 Forest Service study estimated that the extent of old growth in the forest was 345,300 acres (139,700 ha) [ 9 ] some of which occurs in the Red Buttes Wilderness .
United States Forest Service The Boulder Creek Wilderness is a wilderness area located in the Umpqua National Forest in the southern Cascade Range of Oregon , United States. It was designated by the United States Congress in 1984 and comprises 19,100 acres (7,729 ha).
U.S. Forest Service The Clackamas Wilderness is a wilderness area located in the Mount Hood National Forest in the northwestern Cascades of Oregon , United States . Created by the Omnibus Public Land Management Act of 2009 , it consists of 9,470 acres (3,830 ha).
The forest's dominant tree species is the Douglas-fir, the state tree of Oregon. Douglas-fir is a valuable timber species in the United States. The forest contains some stands of old-growth forest, some of which are over 300 feet (91 m) tall, among the tallest trees in the world, with tree diameters ranging from 3 to 8 feet (0.91 to 2.44 m). [10]
Umpqua National Forest, in southern Oregon's Cascade Range, covers an area of 983,129 acres (3,978.58 km 2) in Douglas, Lane, and Jackson counties, and borders the Crater Lake National Park in Southern Oregon. The four ranger districts for the forest are the Cottage Grove, Diamond Lake, North Umpqua, and Tiller ranger districts.
U.S. Forest Service The Three Sisters Wilderness is a wilderness area in the Cascade Range , within the Willamette and Deschutes National Forests in Oregon , United States. It comprises 286,708 acres (1,160.27 km 2 ), making it the second largest wilderness area in Oregon, after the Eagle Cap Wilderness .
The largest tree in Forest Park is a Douglas-fir near the Stone House, the remains of a former public restroom near Balch Creek. It is 242 feet (74 m) high, and the trunk is 18.6 feet (5.7 m) in circumference. [12] Among the prominent wildflowers are Hooker's fairy bells, vanilla leaf, evergreen violet, and trillium. [11]
Name Location Area (acres) Area (km 2) Established Annual visitors (2006) [1] Deschutes: Deschutes, Klamath, Lake, and Jefferson counties: 1,596,900 6,462: July 1, 1908