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 an overlap between US 62/US 412 east of Mountain Home near Lake Norfork. The route passes the Panther Bay Public Use Area, the Bidwell Point Use Area, and the Seward Point Public Use Area. Highway  continues north through the community of Gamaliel before crossing into Missouri where the roadway continues as Route 101. The average daily traffic counts from the Arkansas State Highway and Transportation Department (AHTD) for 2010 show that a maximum of about 2800 vehicles per day (VPD) use the northern portion of Highway 101, with the count dropping to around 1500 VPD for portions further south.