U.S. Route 101
The nearly highway's northern terminus is in Tumwater, Washington: the route remains along the Olympic Peninsula's coastal perimeter west, north, and east; the northernmost point on the highway is in Port Angeles. The southern terminus of US 101 is in Los Angeles at the East Los Angeles Interchange, the world's busiest freeway interchange.
U.S. Route 601
U.S. Route 601 (US 601) is a north–south United States highway that runs for from U.S. Route 321, near Tarboro, South Carolina, to U.S. Route 52, in Mount Airy, North Carolina.