 The northern terminus is at PA 44 in Limestone Township Though it does not have a direct junction with Interstate 80, it underpasses the highway in Carroll and drivers can enter I-80 one mile (1.6 km) east by turning left onto East Valley Road.South of this intersection, PA 880 is known as East Valley Road until Loganton, where it becomes Main Street.South of Loganton it continues as West Valley Road until the Centre County line.