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.
New Jersey Route 101
Route 101 was planned to begin at Harrison Avenue in Kearny, Hudson County. From here, the route was to head north into the New Jersey Meadowlands in Bergen County, where it would pass through Lyndhurst, Rutherford, and East Rutherford. Route 101 would continue north through Carlstadt before running in between Moonachie Road and the Hackensack River. The route was to pass through Little Ferry and into the eastern part of Hackensack, where Route 101 was to terminate at an intersection with Route 4. From this point, Route S101 was planned to continue north to the border in Montvale.