Tenn. Code Ann. § 11-13-109

Within the exterior boundaries of a scenic river area, as established under § 11-13-108, the commissioner of environment and conservation may acquire on behalf of the state of Tennessee lands in fee title, or an interest in land in the form of easements as defined in § 11-13-102. Acquisition of land or of interest therein may be by donation, purchase with donated or appropriated funds, exchange, or otherwise.