Lone Mountain State Forest is a state forest in Morgan County, Tennessee, located in the southeastern United States. The forest consists of 3,624 acres (14.67 km2) managed by the Tennessee Department of Agriculture.
Lone Mountain is a detached ridge-like mountain rising to an elevation of 2,530 feet (770 m) in the southern half of Morgan County. Although the mountain's altitude isn't particularly notable, its isolation makes it one of the 25 most prominent mountains in the state of Tennessee. 
Lone Mountain is located on the western fringe of the Crab Orchard Mountains, which rise atop the Cumberland Plateau just west of the plateau's Walden Ridge escarpment. The mountain's western base is formed by the Emory River, which flows down from its source near the summit of Bird Mountain to the northeast and winds around the base of the range before descending the plateau and emptying into the Watts Bar Lake impoundment of the Tennessee River. Lone Mountain's northern base is formed by Crooked Fork, a tributary of the Emory. Bitter Creek, which flows roughly parallel to the Emory, slices a substantial valley along Lone Mountain's eastern base, splitting the mountain off from the rest of the Crab Orchard range.
Lone Mountain State Forest was created from a land donation by the Lone Mountain Land Company in 1938 and a large land purchase by the Morgan County Chancery Court the following year. Lone Mountain was managed as part of Morgan State Forest until 1970, when it became an independent state forest. The State Forestry Division managed Lone Mountain with a "hands-off" approach to allow the forest to recover from damage caused by the Lone Mountain Land Company. Timber harvests within the forest are therefore relatively rare. 
In 2002, a tornado swept across Morgan County, devastating the community of Mossy Grove and wiping out some 500 acres (2.0 km2) of trees in Lone Mountain State Forest. The tornado caused the closure of the Carl Black Spur trail which remains closed as of 2008. Forestry officials plan to have the Carl Black Spur trail open for the public again soon. The tornado opened up the opportunity for a new trail aptly named Twister Pass which runs from the South West trail up to Todds Landing. Southern pine beetle infestations in the 1970s and 1990s killed off a large number of the forest's pine trees, leaving mostly hardwoods. 
Lone Mountain has approximately 15 miles (24 km) of trails, the most popular of which leads to Coyote Point, an overlook just below the summit on the south slope of the mountain. The trails were developed in the late 1980s for horseback riding, and are well-equipped with watering holes and hitching posts. The trails are also open to hikers and mountain bikers. The trailhead is located just west of US-27 along Clayton Howard Road.
- Ryan Richardson, " Tennessee P1000 Summits." 15 May 2005. Retrieved: 11 January 2008.
- The Rainforest Alliance SmartWood Program, " Forest Management Public Summary for Tennessee Department of Agriculture - Forestry Division[ permanent dead link]," 1 October 2002. Retrieved: 11 January 2008.
- The Tennessee Department of Agriculture, " Lone Mountain State Forest." Retrieved: 11 January 2008.
- Lone Mountain State Forest Trail Map — provided by TennesseeOutdoorsman.com
- East Tennessee Mountain Bike Rides - Lone Mountain — contains trail information and trail maps