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.
Rhode Island Route 101
Route 101 begins at the Connecticut state line between the towns of Killingly and Foster as a continuation of Connecticut Route 101. The route, known locally as Hartford Pike, runs for about through several reservoirs before ending at US 6 Bypass in the town of Scituate, near the north edge of the Scituate Reservoir. Route 101 passes near Jerimoth Hill, the highest point in Rhode Island.