Florida State Road 907

State Road 907 (SR 907), also known as Alton Road and 63rd Street, is a major north–south artery in Miami Beach, Florida, USA, extending 5.659-mile (9.107 km). It is one of a few of the state roads that have both termini on the same state route. In this case, the southern terminus is the intersection of Alton Road and Fifth Street (SR A1A), and the northern terminus is the intersection of 63rd Street and Collins Avenue (SR A1A). Alton Road snakes up the western (Biscayne Bay) side of the barrier islands comprising Miami Beach, while Collins Avenue parallels the Atlantic shore to the east. In addition, SR 907 is often used as a bypass for the oft-congested SR A1A.

Alton Road has seen early ripples of sea level rise caused by global warming.