^ a bGoogle (February 29, 2016). "North Carolina Highway 522" (Map). Google Maps. Google. Retrieved February 29, 2016.
^ a b"NCRoads.com: N.C. 522". Archived from the original on June 4, 2011. Retrieved 2011-06-26.[self-published source]
^Union County, North Carolina (PDF) (Map). North Carolina Department of Transportation. December 2015. Retrieved March 7, 2016.
^North Carolina County Road Survey 1953 (PDF) (Map). Cartography by NCSHC / U.S. Bureau of Public Roads. North Carolina State Highway Commission. 1953. Retrieved March 7, 2016.