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.
North Carolina Highway 101
NC 101 was an original state highway appearing on a 1922 state map of North Carolina. NC 101 started at former NC 10 south of Havelock. NC 101 then went southeast through the town of Newport, and the communities of Mansfield and Wildwood. NC 101 had its eastern terminus in Morehead City. In 1928 NC 10 and NC 101 swapped routing. When NC 10 and US 70 were extended to Atlantic in 1931, NC 101 was truncated east of Beaufort. The routing has been the same since 1931.