The state, counties, municipalities, and all political subdivisions of Tennessee are empowered to cooperate with each other, and with other states, and with the United States government, or any agency thereof, in planning, establishing, improving, or maintaining any park or other recreational area or monument.
Cooperation for park purposes
Tenn. Code Ann. § 11-3-104, under General Provisions.
Tenn. Code Ann. § 11-3-104