Question: What is the name given to a north-south US Route in the eastern United States which extends for 680 miles from an interchange with New York State Route 17 in Pennsylvania, to an intersection with US 1 in North Carolina, passing a populated place known as Emery 50 miles south of Greensboro?
Sentence (from "Emery, North Carolina"): It is located along the co-designated Interstate 73 - Interstate 74, about 50 miles south of Greensboro where the interstates meet U.S. Route 220.
Relevant evidence: Yes