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.
Arkansas Highway 101
Highway 101 begins at Marion County Route 664 at the unincorporated community of Hand Valley and runs north to Rea Valley. The route continues north to terminate at US 62/US 412 between Cotter and Flippin. Traffic counts from the AHTD in 2010 indicate that the average daily traffic volume on this segment of Highway 101 is about 1100 vehicles per day.