The Unicoi Mountains are a mountain range rising along the border between Tennessee and North Carolina in the southeastern United States. They are part of the Blue Ridge Mountain Province of the Southern Appalachian Mountains. The Unicois are located immediately south of the Great Smoky Mountains and immediately west of the Cheoah Mount…The Unicoi Mountains are a mountain range rising along the border between Tennessee and North Carolina in the southeastern United States. They are part of the Blue Ridge Mountain Province of the Southern Appalachian Mountains. The Unicois are located immediately south of the Great Smoky Mountains and immediately west of the Cheoah Mountains. Most of the range is protected as a national forest, namely the Cherokee National Forest on the Tennessee side and the Nantahala National Forest on the North Carolina side— although some parts have been designated as wilderness areas and are thus more strictly regulated.