The Knoxville's Urban Wilderness South Loop Trail is a partnership effort spearheaded by the Legacy Parks Foundation working with the City of Knoxville, Knox County, Ijams Nature Center, TWRA and the Appalachian Mountain Bike Club to connect 1,000 acres of parks and preserved land through an intricate trail system.

Thanks to thousands of hours of volunteer labor from the Appalachian Mountain Bike Club and donations to purchase land from Ambassador Victor Ashe, the Knox Greenways Coalition, and the Knoxville Track Club, the South Loop portion of the Urban Wilderness Trail was opened in 2012. Currently, the Knoxville's Urban Wilderness South Loop Trail connects 33 miles of varied surface trails.