of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility. The road that is now SR 120 used to be the northern half of SR 120 Loop, before that designation was decommissioned. Marietta loop route State Route 120 Loop (SR 120 Loop) was the former designation of the entire length of the Marietta Parkway, completely within the city limits of Marietta. As its name implies, it was a loop around the center of the city. These intersections start from the western meeting with the SR 120 mainline and proceed counterclockwise. As a loop, it did not have actual beginning or ending terminii. See also References External links Georgia Roads (Routes 101-120) Georgia State Route 120 on State-Ends.com Georgia State Route 120 CONN on State-Ends.com 120 State Route 120 State Route 120 State Route 120 Transportation in Haralson County, Georgia Transportation in Paulding County, Georgia Transportation in Cobb County, Georgia Transportation in Fulton County, Georgia Transportation in Gwinnett County, Georgia