The Cobb Cloverleaf is the name given to the intersection of Interstate 75 and Interstate 285 outside Atlanta, Georgia. Despite the name, the interchange has only two cloverleaf-style ramps (see Road junctions) Interstate 75 is an interstate highway in the midwest and southeastern United States. ... Interstate 285 (Georgia State Route 407), usually known as the Perimeter, is a beltway interstate highway encircling Atlanta, Georgia for 64 miles (103 km). ... Atlanta is the capital and largest city of Georgia, a state of the United States of America. ... In the field of road transport, a road junction is a place where two or more roads either meet or cross. ...