Rand McNally and Company (1927). "Arizona and New Mexico" (Map). Rand McNally Auto Road Atlas of the United States and Ontario, Quebec, and the Maritime Provinces of Canada. 1:2,500,000. Chicago: Rand McNally and Company. p. 67. Retrieved October 18, 2018.
Wallace, Laurel T. (October 2004). "Historic Highways in the NMDOT System"(PDF) (PDF). NMDOT Technical Series. Santa Fe, New Mexico. Retrieved October 18, 2018 – via New Mexico Department of Transportation.