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Barnett, LeRoy (2004). A Drive Down Memory Lane: The Named State and Federal Highways of Michigan. Allegan Forest, Michigan: Priscilla Press. pp. 96–97. ISBN 1-886167-24-9. OCLC 57425393.
Michigan State Highway Department & Rand McNally (May 15, 1937). Official Michigan Highway Map (Map) (Summer ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § B5. OCLC 12701143. Retrieved October 17, 2019 – via Michigan History Center.
State Administrative Board (February 20, 2007). "State Administrative Board Resolutions, 1940–Present". Lansing: State of Michigan. p. 49. OCLC 85834636. Retrieved January 1, 2023 – via Library of Michigan Digital Repository.
Michigan State Highway Department (1963). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § C6. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
Swanson, Scott (April 26, 2005). "City to Get $2.5 Million". The Mining Journal. Marquette, Michigan. p. A1. ISSN 0898-4964. OCLC 9729223.
Michigan Department of Transportation (2006). Michigan, A State for All Seasons: Official Department of Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. § B4. OCLC 42778335.
Michigan State Highway Department & Rand McNally (December 1, 1939). Official Michigan Highway Map (Map) (Winter ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § B4. OCLC 12701143. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department & Rand McNally (April 15, 1940). Official Michigan Highway Map (Map) (Spring ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § B4. OCLC 12701143.
Michigan State Highway Department & Rand McNally (June 1, 1942). Official Michigan Highway Map (Map) (Summer ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § B4. OCLC 12701143.
Michigan State Highway Department & Rand McNally (July 1, 1941). Official Michigan Highway Map (Map) (Summer ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § B4. OCLC 12701143. Archived from the original on April 22, 2017. Retrieved January 2, 2017 – via Archives of Michigan.

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Joint Board on Interstate Highways (1925). "Appendix VI: Descriptions of the Interstate Routes Selected, with Numbers Assigned". Report of Joint Board on Interstate Highways, October 30, 1925, Approved by the Secretary of Agriculture, November 18, 1925 (Report). Washington, DC: United States Department of Agriculture. p. 52. OCLC 733875457, 55123355, 71026428. Retrieved November 14, 2017 – via Wikisource.
Michigan State Highway Department (December 1, 1927). Official Highway Service Map (Map). [c. 1:810,000]. Lansing: Michigan State Highway Department. OCLC 12701195, 79754957.
Michigan State Highway Department & H.M. Gousha (July 1, 1930). Official Highway Service Map (Map). [c. 1:810,000]. Lansing: Michigan State Highway Department. OCLC 12701195, 79754957.
Michigan Department of State Highways (1971). Michigan, Great Lake State: Official Highway Map (Map). c. 1:918,720. Lansing: Michigan Department of State Highways. § D6. OCLC 12701120, 77960415.
Michigan Department of State Highways and Transportation (1975). Michigan, Great Lake State: Official Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of State Highways and Transportation. Marquette inset. OCLC 12701177, 320798754. Retrieved October 17, 2019 – via Michigan History Center.
Michigan Department of Transportation (1982). Say Yes to Michigan!: Official Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of Transportation. Marquette inset. OCLC 12701177, 320798736. Archived from the original on August 27, 2019. Retrieved August 26, 2019 – via Archives of Michigan.
Michigan State Highway Department (1958). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § C5. OCLC 12701120, 51856742. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1958)
Michigan State Highway Department (1964). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § C6. OCLC 12701120, 81213707. Retrieved October 17, 2019 – via Michigan History Center.