 M-72 has been listed on the National Highway System (NHS) between the intersection of Division Street and Grandview Parkway in Traverse City and the southern junction with BL I-75 in Grayling.The NHS is a network of roads important to the country's defense, mobility and economy.In addition to the NHS listing, M-72 has been included on the Lake Michigan Circle Tour along its segments concurrent with M-22 and US 31 in the Traverse City area.