New York State Route 175 is a west–east state highway located in Onondaga County, New York, in the United States. The 15.46-mile (24.88 km) route begins at an intersection with U.S. Route 20 east of the village of Skaneateles. It heads towards the northeast as Lee Mulroy Road, traversing farmland. It then passes through the village of Marcellus before ending at a junction with U.S. Route 11 in Syracuse. Designated in the 1930 renumbering of state highways in New York, the highway brought about an increase in population and development along its route. The section of Route 175 from downtown Marcellus to New York State Route 173 in Onondaga was built along the historical Seneca Turnpike, which was established in 1800 and dissolved...