Section 27-69-206 - Standard road signs(a) The State Highway Commission is authorized and directed to erect and maintain signs designating the route of the Great River Road through Arkansas.(b) The signs used to designate the route shall be the standard marker developed and approved for the Great River Road by the National Mississippi River Parkway Planning Commission.Acts 1961, No. 151, § 7; A.S.A. 1947, § 76-1818.