System Information and Research Division (2015). "Arkansas Road Log Database"(MDB). Arkansas State Highway and Transportation Department. Retrieved March 27, 2016.
Transportation Planning and Policy Division (November 19, 2013) [August 12, 2002]. General Highway Map, Boone County, Arkansas(PDF) (Map) (Revised ed.). 1:62,500. Little Rock: Arkansas Department of Transportation. OCLC909275885. Retrieved August 7, 2021. {{cite map}}: |author= has generic name (help)
Transportation Planning and Policy Division (November 19, 2013) [August 12, 2002]. General Highway Map, Boone County, Arkansas(PDF) (Map) (Revised ed.). 1:62,500. Little Rock: Arkansas Department of Transportation. OCLC909275885. Retrieved August 7, 2021. {{cite map}}: |author= has generic name (help)