Michigan Legislature (1915) [enacted May 13, 1913]. "Chapter 91: State Reward Trunk Line Highways". In Shields, Edmund C.; Black, Cyrenius P.; Broomfield, Archibald (eds.). The Compiled Laws of the State of Michigan. Vol. 1. Lansing, MI: Wynkoop, Hallenbeck, Crawford. pp. 1868–72. OCLC44724558. Retrieved January 24, 2012.
Michigan State Highway Department & Rand McNally (December 1, 1937). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC12701143. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department & Rand McNally (December 1, 1939). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC12701143. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department (1958). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. §§ E6–F6. OCLC12701120, 51856742. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1958)
Michigan State Highway Department (1960). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. §§ E6–F6. OCLC12701120, 81552576. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1960)
Michigan State Highway Department (July 1, 1919). State of Michigan (Map). Scale not given. Lansing: Michigan State Highway Department. Lower Peninsula sheet. OCLC15607244. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department (1963). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. OCLC12701120. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department (1964). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. OCLC12701120, 81213707. Retrieved October 17, 2019 – via Michigan History Center.
Michigan Department of Transportation (1999). Michigan Department of Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit and Vicinity inset. §§ A10–A11. OCLC42778335, 55974644. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department & Rand McNally (December 1, 1937). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC12701143. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department & Rand McNally (April 15, 1939). Official Michigan Highway Map (Map) (Summer ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC12701143.
Michigan State Highway Department & Rand McNally (December 1, 1939). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC12701143. Retrieved October 17, 2019 – via Michigan History Center.
Mason, Philip P. (1959). Michigan Highways from Indian Trails to Expressways. Ann Arbor, MI: Braun-Brumfield. p. 3. OCLC23314983.
Lingeman, Stanley D. (April 6, 2001). Michigan Highway History Timeline 1701–2001: 300 Years of Progress. Lansing: Library of Michigan. pp. 1–2. OCLC435640179.
Michigan Legislature (1915) [enacted May 13, 1913]. "Chapter 91: State Reward Trunk Line Highways". In Shields, Edmund C.; Black, Cyrenius P.; Broomfield, Archibald (eds.). The Compiled Laws of the State of Michigan. Vol. 1. Lansing, MI: Wynkoop, Hallenbeck, Crawford. pp. 1868–72. OCLC44724558. Retrieved January 24, 2012.
Michigan State Highway Department (July 1, 1919). State of Michigan (Map). Scale not given. Lansing: Michigan State Highway Department. Lower Peninsula sheet. OCLC15607244. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department (1963). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. OCLC12701120. Retrieved October 17, 2019 – via Michigan History Center.
Michigan Department of Transportation (1998). Michigan Department of Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit and Vicinity inset. §§ A10–A11. OCLC42778335.
Michigan Department of Transportation (2002). Michigan, Great Lakes Great Times: Official Department of Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit and Vicinity inset. OCLC42778335.
Michigan State Highway Department (1958). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. §§ E6–F6. OCLC12701120, 51856742. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1958)
Michigan State Highway Department (1960). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. §§ E6–F6. OCLC12701120, 81552576. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1960)
Michigan State Highway Department (1964). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. OCLC12701120, 81213707. Retrieved October 17, 2019 – via Michigan History Center.
Michigan Department of Transportation (1999). Michigan Department of Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit and Vicinity inset. §§ A10–A11. OCLC42778335, 55974644. Retrieved October 17, 2019 – via Michigan History Center.
