Goetz, Jeff (July 2, 2012). "Casper's West Belt Loop". Interchange. Vol. 40, no. 7. Wyoming Department of Transportation. pp. 10–11. Retrieved September 10, 2021.
Davis, Deborah (August 28, 1999). "Council hears west belt loop update". Casper Star-Tribune. p. B4. Retrieved September 10, 2021 – via Newspapers.com.