^ abPlanning and Research Division (2010). "Arkansas Road Log Database". Arkansas State Highway and Transportation Department. Archived from the original(ZIP) on 23 June 2011. Retrieved June 9, 2011.
^General Highway Map, Monroe County, Arkansas(PDF) (Map). 1:62500. Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. May 2, 2000. Retrieved February 19, 2012.
^General Highway Map, Phillips County, Arkansas(PDF) (Map). 1:62500. Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. August 9, 2007. Retrieved January 22, 2012.