Roswell and Marietta meet between Ga 400 and I-75. I call this the north corridor which is one of the most desirable areas to live in the Metro Atlanta area. The area of Marietta east of I-75 is called East Cobb and is adjacent to Roswell. Roswell also extends east of Ga 400, however the downtown area of Roswell is about 3 miles west of Ga 400 and is a really great place to find unique restaurants and art galleries all within walking distance of one another. I specialize in listing homes in Roswell and East Cobb. Please contact me if you are interested in buying here!