The inset map for Maryville, from the official 1950 Missouri highway map. Many of the routes and route designations have changed since 1950. US 71 and US 136 now bypass Maryville on the north and east. Missouri 4 is now US 136; Missouri 27 is now Missouri 148, which has been shortened to end at US 71-US 136. The only constant between then and now is Missouri 46.