Brush Mountain Wilderness is a federally protected wilderness area north of Blacksburg in southwestern Virginia, extending about eight miles along Brush Mountain above Craig Creek. Designated by Congress in 1984 under the Eastern Wilderness Act and managed by the U.S. Forest Service, it is maintained in a largely natural state with no trails and strict limits on vehicles, equipment, bikes, group size, and camping. Its ridge, hollows, and exposed rock layers preserve both natural and local history. The area is especially important for old-growth oak-pine forest, an exceptional concentration of table mountain pine, uncommon plants, and protected habitat in Craig Creek for the endangered James River spinymussel.