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.
Colorado State Highway 101
SH 101 runs , starting at a junction with US 50 in Las Animas, heading south across the Purgatoire River and ending at a junction with CR K and CR 14.