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 "U.S. Route 220"): US 220 is a spur route of US 20; however, the two routes do not intersect nor do they connect via other spurs of US 20.
Relevant evidence: No