The state highway commission is hereby authorized and directed to erect and maintain signs designating the route of the Great River Road through Mississippi. The signs used to designate the route shall be the standard marker developed and approved for the Great River Road by the National Commission.
Erection of signs along Great River Road
Miss. Code Ann. § 55-5-63, under Federal Parks and National Parkways.
Miss. Code Ann. § 55-5-63