State Route 120 (SR 120) is a 4.160-mile-long (6.695 km) state highway in Tallapoosa County in the east-central part of the U.S. state of Alabama. The western terminus of the highway is at an intersection with SR 49 in the unincorporated community of Reeltown. The eastern terminus of the highway is at an intersection with SR 14 west of Notasulga.

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SR 120 is just over 4 miles (6.4 km) long. It travels generally to the southeast and is routed along a two-lane road. It serves as a connector between SR 49 and SR 14.

The entire route is in Tallapoosa County.

Location	mi	km	Destinations	Notes
Reeltown	0.000	0.000	SR 49 – Franklin, Dadeville	Western terminus
​	4.160	6.695	SR 14 – Notasulga, Tallassee	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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